42656959278901 has 8 divisors (see below), whose sum is σ = 46668970910304. Its totient is φ = 38667298687920.

The previous prime is 42656959278889. The next prime is 42656959278977. The reversal of 42656959278901 is 10987295965624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42656959278901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42656959278001) 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, 5587756110 + ... + 5587763743.

It is an arithmetic number, because the mean of its divisors is an integer number (5833621363788).

Almost surely, 2^{42656959278901} is an apocalyptic number.

It is an amenable number.

42656959278901 is a deficient number, since it is larger than the sum of its proper divisors (4012011631403).

42656959278901 is a wasteful number, since it uses less digits than its factorization.

42656959278901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11175520211.

The product of its (nonzero) digits is 587865600, while the sum is 73.

The spelling of 42656959278901 in words is "forty-two trillion, six hundred fifty-six billion, nine hundred fifty-nine million, two hundred seventy-eight thousand, nine hundred one".