1511628906872 has 96 divisors (see below), whose sum is σ = 3352546628640. Its totient is φ = 636945120000.

The previous prime is 1511628906863. The next prime is 1511628906883. The reversal of 1511628906872 is 2786098261151.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60987122 + ... + 61011902.

It is an arithmetic number, because the mean of its divisors is an integer number (34922360715).

Almost surely, 2^{1511628906872} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1511628906872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1676273314320).

1511628906872 is an abundant number, since it is smaller than the sum of its proper divisors (1840917721768).

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

1511628906872 is a wasteful number, since it uses less digits than its factorization.

1511628906872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27413 (or 27402 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 56.

The spelling of 1511628906872 in words is "one trillion, five hundred eleven billion, six hundred twenty-eight million, nine hundred six thousand, eight hundred seventy-two".