868020406312400 has 120 divisors (see below), whose sum is σ = 2276532518914944. Its totient is φ = 315431512883200.

The previous prime is 868020406312363. The next prime is 868020406312489. The reversal of 868020406312400 is 4213604020868.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59791217 + ... + 72876816.

Almost surely, 2^{868020406312400} is an apocalyptic number.

868020406312400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

868020406312400 is an abundant number, since it is smaller than the sum of its proper divisors (1408512112602544).

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

868020406312400 is a wasteful number, since it uses less digits than its factorization.

868020406312400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132669549 (or 132669538 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 868020406312400 in words is "eight hundred sixty-eight trillion, twenty billion, four hundred six million, three hundred twelve thousand, four hundred".