42641054656 has 56 divisors (see below), whose sum is σ = 85023838080. Its totient is φ = 21217969152.

The previous prime is 42641054647. The next prime is 42641054671. The reversal of 42641054656 is 65645014624.

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, 15681265 + ... + 15683983.

Almost surely, 2^42641054656 is an apocalyptic number.

It is an amenable number.

42641054656 is a deficient number, since it is larger than the sum of its proper divisors (42382783424).

42641054656 is a wasteful number, since it uses less digits than its factorization.

42641054656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821 (or 3811 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 42641054656 in words is "forty-two billion, six hundred forty-one million, fifty-four thousand, six hundred fifty-six".