15400187068 has 36 divisors (see below), whose sum is σ = 32361696192. Its totient is φ = 6387171840.

The previous prime is 15400187039. The next prime is 15400187071. The reversal of 15400187068 is 86078100451.

It is a self number, because there is not a number n which added to its sum of digits gives 15400187068.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 1261221 + ... + 1273372.

Almost surely, 2^15400187068 is an apocalyptic number.

It is an amenable number.

15400187068 is an abundant number, since it is smaller than the sum of its proper divisors (16961509124).

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

15400187068 is a wasteful number, since it uses less digits than its factorization.

15400187068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534642 (or 2534633 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 15400187068 in words is "fifteen billion, four hundred million, one hundred eighty-seven thousand, sixty-eight".