42865543630465 has 8 divisors (see below), whose sum is σ = 51783878212200. Its totient is φ = 34062284333952.

The previous prime is 42865543630457. The next prime is 42865543630489. The reversal of 42865543630465 is 56403634556824.

It can be written as a sum of positive squares in 4 ways, for example, as 5229564006976 + 37635979623489 = 2286824^2 + 6134817^2 .

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 42865543630465 - 2³ = 42865543630457 is a prime.

It is a super-2 number, since 2×42865543630465² (a number of 28 digits) contains 22 as substring.

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, 28768820484 + ... + 28768821973.

It is an arithmetic number, because the mean of its divisors is an integer number (6472984776525).

Almost surely, 2^{42865543630465} is an apocalyptic number.

It is an amenable number.

42865543630465 is a deficient number, since it is larger than the sum of its proper divisors (8918334581735).

42865543630465 is a wasteful number, since it uses less digits than its factorization.

42865543630465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57537642611.

The product of its (nonzero) digits is 248832000, while the sum is 61.

The spelling of 42865543630465 in words is "forty-two trillion, eight hundred sixty-five billion, five hundred forty-three million, six hundred thirty thousand, four hundred sixty-five".