13051521870 has 32 divisors (see below), whose sum is σ = 31498657920. Its totient is φ = 3460960800.

The previous prime is 13051521869. The next prime is 13051521887. The reversal of 13051521870 is 7812515031.

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 15 ways as a sum of consecutive naturals, for example, 1209856 + ... + 1220595.

It is an arithmetic number, because the mean of its divisors is an integer number (984333060).

Almost surely, 2^13051521870 is an apocalyptic number.

13051521870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13051521870 is an abundant number, since it is smaller than the sum of its proper divisors (18447136050).

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

13051521870 is a wasteful number, since it uses less digits than its factorization.

13051521870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430640.

The product of its (nonzero) digits is 8400, while the sum is 33.

The spelling of 13051521870 in words is "thirteen billion, fifty-one million, five hundred twenty-one thousand, eight hundred seventy".