3752696981 has 4 divisors (see below), whose sum is σ = 4093851264. Its totient is φ = 3411542700.

The previous prime is 3752696929. The next prime is 3752696993. The reversal of 3752696981 is 1896962573.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1896962573 = 11 ⋅172451143.

It is a cyclic number.

It is not a de Polignac number, because 3752696981 - 2³⁰ = 2678955157 is a prime.

It is a super-2 number, since 2×3752696981² = 28165469262413028722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3752693981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170577125 + ... + 170577146.

It is an arithmetic number, because the mean of its divisors is an integer number (1023462816).

Almost surely, 2^3752696981 is an apocalyptic number.

It is an amenable number.

3752696981 is a deficient number, since it is larger than the sum of its proper divisors (341154283).

3752696981 is a wasteful number, since it uses less digits than its factorization.

3752696981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341154282.

The product of its digits is 4898880, while the sum is 56.

The square root of 3752696981 is about 61259.2603693515. The cubic root of 3752696981 is about 1553.9886147035.

The spelling of 3752696981 in words is "three billion, seven hundred fifty-two million, six hundred ninety-six thousand, nine hundred eighty-one".