1372650856580 has 24 divisors (see below), whose sum is σ = 2882758925592. Its totient is φ = 549023747072.

The previous prime is 1372650856573. The next prime is 1372650856583. The reversal of 1372650856580 is 856580562731.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 98781975616 + 1273868880964 = 314296^2 + 1128658^2 .

It is not an unprimeable number, because it can be changed into a prime (1372650856583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1978637 + ... + 2580756.

It is an arithmetic number, because the mean of its divisors is an integer number (120114955233).

Almost surely, 2^{1372650856580} is an apocalyptic number.

1372650856580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1372650856580 is an abundant number, since it is smaller than the sum of its proper divisors (1510108069012).

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

1372650856580 is a wasteful number, since it uses less digits than its factorization.

1372650856580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4574455 (or 4574453 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 56.

The spelling of 1372650856580 in words is "one trillion, three hundred seventy-two billion, six hundred fifty million, eight hundred fifty-six thousand, five hundred eighty".