3995887697634 has 32 divisors (see below), whose sum is σ = 9167160416256. Its totient is φ = 1137469346640.

The previous prime is 3995887697621. The next prime is 3995887697741. The reversal of 3995887697634 is 4367967885993.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175524012 + ... + 175546775.

It is an arithmetic number, because the mean of its divisors is an integer number (286473763008).

Almost surely, 2^{3995887697634} is an apocalyptic number.

3995887697634 is an abundant number, since it is smaller than the sum of its proper divisors (5171272718622).

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

3995887697634 is a wasteful number, since it uses less digits than its factorization.

3995887697634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351071070.

The product of its digits is 14814213120, while the sum is 84.

The spelling of 3995887697634 in words is "three trillion, nine hundred ninety-five billion, eight hundred eighty-seven million, six hundred ninety-seven thousand, six hundred thirty-four".