4001615642634 has 32 divisors (see below), whose sum is σ = 8056242500544. Its totient is φ = 1325049609600.

The previous prime is 4001615642603. The next prime is 4001615642659. The reversal of 4001615642634 is 4362465161004.

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, 377392 + ... + 2854059.

It is an arithmetic number, because the mean of its divisors is an integer number (251757578142).

Almost surely, 2^{4001615642634} is an apocalyptic number.

4001615642634 is an abundant number, since it is smaller than the sum of its proper divisors (4054626857910).

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

4001615642634 is a wasteful number, since it uses less digits than its factorization.

4001615642634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232822.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 4001615642634 in words is "four trillion, one billion, six hundred fifteen million, six hundred forty-two thousand, six hundred thirty-four".