70745217051 has 8 divisors (see below), whose sum is σ = 94352280064. Its totient is φ = 47150816040.

The previous prime is 70745217043. The next prime is 70745217157. The reversal of 70745217051 is 15071254707.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70745217051 - 2³ = 70745217043 is a prime.

It is a super-2 number, since 2×70745217051² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70745217451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3152455 + ... + 3174816.

It is an arithmetic number, because the mean of its divisors is an integer number (11794035008).

Almost surely, 2^70745217051 is an apocalyptic number.

70745217051 is a deficient number, since it is larger than the sum of its proper divisors (23607063013).

70745217051 is a wasteful number, since it uses less digits than its factorization.

70745217051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6331001.

The product of its (nonzero) digits is 68600, while the sum is 39.

The spelling of 70745217051 in words is "seventy billion, seven hundred forty-five million, two hundred seventeen thousand, fifty-one".