34778637798 has 16 divisors (see below), whose sum is σ = 69626224560. Its totient is φ = 11581387776.

The previous prime is 34778637781. The next prime is 34778637851. The reversal of 34778637798 is 89773687743.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2866315 + ... + 2878422.

It is an arithmetic number, because the mean of its divisors is an integer number (4351639035).

Almost surely, 2^34778637798 is an apocalyptic number.

34778637798 is an abundant number, since it is smaller than the sum of its proper divisors (34847586762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34778637798 is a wasteful number, since it uses less digits than its factorization.

34778637798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5745751.

The product of its digits is 298722816, while the sum is 69.

The spelling of 34778637798 in words is "thirty-four billion, seven hundred seventy-eight million, six hundred thirty-seven thousand, seven hundred ninety-eight".