15537887740 has 48 divisors (see below), whose sum is σ = 32850336960. Its totient is φ = 6173176320.

The previous prime is 15537887713. The next prime is 15537887747. The reversal of 15537887740 is 4778873551.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15537887747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5565745 + ... + 5568535.

It is an arithmetic number, because the mean of its divisors is an integer number (684382020).

Almost surely, 2^15537887740 is an apocalyptic number.

15537887740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15537887740 is an abundant number, since it is smaller than the sum of its proper divisors (17312449220).

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

15537887740 is a wasteful number, since it uses less digits than its factorization.

15537887740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4582 (or 4580 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 55.

The spelling of 15537887740 in words is "fifteen billion, five hundred thirty-seven million, eight hundred eighty-seven thousand, seven hundred forty".