42653694864 has 80 divisors (see below), whose sum is σ = 120372295680. Its totient is φ = 12907466880.

The previous prime is 42653694859. The next prime is 42653694883. The reversal of 42653694864 is 46849635624.

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, 328297 + ... + 439415.

It is an arithmetic number, because the mean of its divisors is an integer number (1504653696).

Almost surely, 2^42653694864 is an apocalyptic number.

42653694864 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42653694864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60186147840).

42653694864 is an abundant number, since it is smaller than the sum of its proper divisors (77718600816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42653694864 is a wasteful number, since it uses less digits than its factorization.

42653694864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111868 (or 111862 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 57.

The spelling of 42653694864 in words is "forty-two billion, six hundred fifty-three million, six hundred ninety-four thousand, eight hundred sixty-four".