12577600650 has 24 divisors (see below), whose sum is σ = 31192449984. Its totient is φ = 3354026800.

The previous prime is 12577600649. The next prime is 12577600687. The reversal of 12577600650 is 5600677521.

It is a super-2 number, since 2×12577600650² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12577600599 and 12577600608.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41925186 + ... + 41925485.

It is an arithmetic number, because the mean of its divisors is an integer number (1299685416).

Almost surely, 2^12577600650 is an apocalyptic number.

12577600650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12577600650 is an abundant number, since it is smaller than the sum of its proper divisors (18614849334).

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

12577600650 is a wasteful number, since it uses less digits than its factorization.

12577600650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83850686 (or 83850681 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The spelling of 12577600650 in words is "twelve billion, five hundred seventy-seven million, six hundred thousand, six hundred fifty".