15406775545772 has 48 divisors (see below), whose sum is σ = 30085609293600. Its totient is φ = 6854526927360.

The previous prime is 15406775545753. The next prime is 15406775545793. The reversal of 15406775545772 is 27754557760451.

It is a junction number, because it is equal to n+sod(n) for n = 15406775545699 and 15406775545708.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7319129 + ... + 9186032.

It is an arithmetic number, because the mean of its divisors is an integer number (626783526950).

Almost surely, 2^{15406775545772} is an apocalyptic number.

It is an amenable number.

15406775545772 is a deficient number, since it is larger than the sum of its proper divisors (14678833747828).

15406775545772 is a wasteful number, since it uses less digits than its factorization.

15406775545772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16505826 (or 16505824 counting only the distinct ones).

The product of its (nonzero) digits is 288120000, while the sum is 65.

The spelling of 15406775545772 in words is "fifteen trillion, four hundred six billion, seven hundred seventy-five million, five hundred forty-five thousand, seven hundred seventy-two".