634738677831502 has 16 divisors (see below), whose sum is σ = 1032702526058112. Its totient is φ = 291415174900480.

The previous prime is 634738677831497. The next prime is 634738677831509. The reversal of 634738677831502 is 205138776837436.

634738677831502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×634738677831502³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634738677831509) 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, 227668103998 + ... + 227668106785.

It is an arithmetic number, because the mean of its divisors is an integer number (64543907878632).

Almost surely, 2^{634738677831502} is an apocalyptic number.

634738677831502 is a deficient number, since it is larger than the sum of its proper divisors (397963848226610).

634738677831502 is a wasteful number, since it uses less digits than its factorization.

634738677831502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455336210843.

The product of its (nonzero) digits is 853493760, while the sum is 70.

The spelling of 634738677831502 in words is "six hundred thirty-four trillion, seven hundred thirty-eight billion, six hundred seventy-seven million, eight hundred thirty-one thousand, five hundred two".