34643638078 has 48 divisors (see below), whose sum is σ = 61177343040. Its totient is φ = 14669315136.

The previous prime is 34643638067. The next prime is 34643638093. The reversal of 34643638078 is 87083634643.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3915876 + ... + 3924712.

It is an arithmetic number, because the mean of its divisors is an integer number (1274527980).

Almost surely, 2^34643638078 is an apocalyptic number.

34643638078 is a deficient number, since it is larger than the sum of its proper divisors (26533704962).

34643638078 is a wasteful number, since it uses less digits than its factorization.

34643638078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9329 (or 9322 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 52.

The spelling of 34643638078 in words is "thirty-four billion, six hundred forty-three million, six hundred thirty-eight thousand, seventy-eight".