69364400625 has 100 divisors (see below), whose sum is σ = 139443029572. Its totient is φ = 34148304000.

The previous prime is 69364400621. The next prime is 69364400659. The reversal of 69364400625 is 52600446396.

It can be written as a sum of positive squares in 10 ways, for example, as 67553727921 + 1810672704 = 259911^2 + 42552^2 .

It is not a de Polignac number, because 69364400625 - 2² = 69364400621 is a prime.

It is a super-2 number, since 2×69364400625² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69364400621) by changing a digit.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 605427 + ... + 710823.

Almost surely, 2^69364400625 is an apocalyptic number.

69364400625 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

69364400625 is an abundant number, since it is smaller than the sum of its proper divisors (70078628947).

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

69364400625 is a wasteful number, since it uses less digits than its factorization.

69364400625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105442 (or 105418 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 69364400625 in words is "sixty-nine billion, three hundred sixty-four million, four hundred thousand, six hundred twenty-five".