34278016638 has 16 divisors (see below), whose sum is σ = 68557965840. Its totient is φ = 11425683456.

The previous prime is 34278016613. The next prime is 34278016681. The reversal of 34278016638 is 83661087243.

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, 262398 + ... + 370686.

It is an arithmetic number, because the mean of its divisors is an integer number (4284872865).

Almost surely, 2^34278016638 is an apocalyptic number.

34278016638 is an abundant number, since it is smaller than the sum of its proper divisors (34279949202).

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

34278016638 is a wasteful number, since it uses less digits than its factorization.

34278016638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161051.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 34278016638 in words is "thirty-four billion, two hundred seventy-eight million, sixteen thousand, six hundred thirty-eight".