15385536940 has 24 divisors (see below), whose sum is σ = 32752228320. Its totient is φ = 6069909888.

The previous prime is 15385536931. The next prime is 15385536941. The reversal of 15385536940 is 4963558351.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15385536941) 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, 5267560 + ... + 5270479.

It is an arithmetic number, because the mean of its divisors is an integer number (1364676180).

Almost surely, 2^15385536940 is an apocalyptic number.

15385536940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15385536940 is an abundant number, since it is smaller than the sum of its proper divisors (17366691380).

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

15385536940 is a wasteful number, since it uses less digits than its factorization.

15385536940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10538121 (or 10538119 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 49.

The spelling of 15385536940 in words is "fifteen billion, three hundred eighty-five million, five hundred thirty-six thousand, nine hundred forty".