15147127440 has 160 divisors (see below), whose sum is σ = 52585205760. Its totient is φ = 4007356416.

The previous prime is 15147127439. The next prime is 15147127469. The reversal of 15147127440 is 4472174151.

15147127440 is a `hidden beast` number, since 1 + 51 + 47 + 127 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 15147127395 and 15147127404.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246712 + ... + 301928.

It is an arithmetic number, because the mean of its divisors is an integer number (328657536).

Almost surely, 2^15147127440 is an apocalyptic number.

15147127440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15147127440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26292602880).

15147127440 is an abundant number, since it is smaller than the sum of its proper divisors (37438078320).

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

15147127440 is a wasteful number, since it uses less digits than its factorization.

15147127440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55366 (or 55354 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The spelling of 15147127440 in words is "fifteen billion, one hundred forty-seven million, one hundred twenty-seven thousand, four hundred forty".