715661028400 has 60 divisors (see below), whose sum is σ = 1725494666184. Its totient is φ = 285245632000.

The previous prime is 715661028391. The next prime is 715661028403. The reversal of 715661028400 is 4820166517.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (715661028403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3071146 + ... + 3295945.

Almost surely, 2^715661028400 is an apocalyptic number.

It is an amenable number.

715661028400 is an abundant number, since it is smaller than the sum of its proper divisors (1009833637784).

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

715661028400 is a wasteful number, since it uses less digits than its factorization.

715661028400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6367390 (or 6367379 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 715661028400 in words is "seven hundred fifteen billion, six hundred sixty-one million, twenty-eight thousand, four hundred".