11398725620 has 24 divisors (see below), whose sum is σ = 23959761000. Its totient is φ = 4555216512.

The previous prime is 11398725517. The next prime is 11398725629. The reversal of 11398725620 is 2652789311.

It can be written as a sum of positive squares in 4 ways, for example, as 1550941924 + 9847783696 = 39382^2 + 99236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11398725629) 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, 245195 + ... + 287954.

It is an arithmetic number, because the mean of its divisors is an integer number (998323375).

Almost surely, 2^11398725620 is an apocalyptic number.

11398725620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11398725620 is an abundant number, since it is smaller than the sum of its proper divisors (12561035380).

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

11398725620 is a wasteful number, since it uses less digits than its factorization.

11398725620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534227 (or 534225 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 11398725620 in words is "eleven billion, three hundred ninety-eight million, seven hundred twenty-five thousand, six hundred twenty".