865430135642 has 32 divisors (see below), whose sum is σ = 1339460236800. Its totient is φ = 419053825728.

The previous prime is 865430135639. The next prime is 865430135677. The reversal of 865430135642 is 246531034568.

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, 79691609 + ... + 79702467.

It is an arithmetic number, because the mean of its divisors is an integer number (41858132400).

Almost surely, 2^865430135642 is an apocalyptic number.

865430135642 is a deficient number, since it is larger than the sum of its proper divisors (474030101158).

865430135642 is a wasteful number, since it uses less digits than its factorization.

865430135642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15830.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 865430135642 in words is "eight hundred sixty-five billion, four hundred thirty million, one hundred thirty-five thousand, six hundred forty-two".