15740775540 has 72 divisors (see below), whose sum is σ = 54568026240. Its totient is φ = 3597891264.

The previous prime is 15740775529. The next prime is 15740775571. The reversal of 15740775540 is 4557704751.

15740775540 is a `hidden beast` number, since 1 + 57 + 40 + 7 + 7 + 554 + 0 = 666.

15740775540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6245080 + ... + 6247599.

Almost surely, 2^15740775540 is an apocalyptic number.

15740775540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15740775540 is an abundant number, since it is smaller than the sum of its proper divisors (38827250700).

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

15740775540 is a wasteful number, since it uses less digits than its factorization.

15740775540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12492701 (or 12492696 counting only the distinct ones).

The product of its (nonzero) digits is 686000, while the sum is 45.

The spelling of 15740775540 in words is "fifteen billion, seven hundred forty million, seven hundred seventy-five thousand, five hundred forty".