42786400665601 has 8 divisors (see below), whose sum is σ = 42854699631744. Its totient is φ = 42718122392400.

The previous prime is 42786400665563. The next prime is 42786400665637. The reversal of 42786400665601 is 10656600468724.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42786400665601 - 2¹⁷ = 42786400534529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42786400666601) 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, 1031931 + ... + 9307936.

It is an arithmetic number, because the mean of its divisors is an integer number (5356837453968).

Almost surely, 2^{42786400665601} is an apocalyptic number.

It is an amenable number.

42786400665601 is a deficient number, since it is larger than the sum of its proper divisors (68298966143).

42786400665601 is a wasteful number, since it uses less digits than its factorization.

42786400665601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10346471.

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 42786400665601 in words is "forty-two trillion, seven hundred eighty-six billion, four hundred million, six hundred sixty-five thousand, six hundred one".