15402545795532 has 96 divisors (see below), whose sum is σ = 43424017369600. Its totient is φ = 4150904320512.

The previous prime is 15402545795491. The next prime is 15402545795543. The reversal of 15402545795532 is 23559754520451.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 20705953 + ... + 21436920.

Almost surely, 2^{15402545795532} is an apocalyptic number.

15402545795532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15402545795532 is an abundant number, since it is smaller than the sum of its proper divisors (28021471574068).

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

15402545795532 is a wasteful number, since it uses less digits than its factorization.

15402545795532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42143135 (or 42143133 counting only the distinct ones).

The product of its (nonzero) digits is 37800000, while the sum is 57.

The spelling of 15402545795532 in words is "fifteen trillion, four hundred two billion, five hundred forty-five million, seven hundred ninety-five thousand, five hundred thirty-two".