34639731794 has 48 divisors (see below), whose sum is σ = 56631396888. Its totient is φ = 15835470336.

The previous prime is 34639731781. The next prime is 34639731799. The reversal of 34639731794 is 49713793643.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 33256263769 + 1383468025 = 182363^2 + 37195^2 .

It is a super-2 number, since 2×34639731794² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (34639731799) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12383204 + ... + 12386000.

Almost surely, 2^34639731794 is an apocalyptic number.

34639731794 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

34639731794 is a deficient number, since it is larger than the sum of its proper divisors (21991665094).

34639731794 is a wasteful number, since it uses less digits than its factorization.

34639731794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099 (or 3056 counting only the distinct ones).

The product of its digits is 10287648, while the sum is 56.

The spelling of 34639731794 in words is "thirty-four billion, six hundred thirty-nine million, seven hundred thirty-one thousand, seven hundred ninety-four".