13501531370 has 32 divisors (see below), whose sum is σ = 25116618240. Its totient is φ = 5220169920.

The previous prime is 13501531349. The next prime is 13501531397. The reversal of 13501531370 is 7313510531.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238901 + ... + 289959.

It is an arithmetic number, because the mean of its divisors is an integer number (784894320).

Almost surely, 2^13501531370 is an apocalyptic number.

13501531370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13501531370 is a deficient number, since it is larger than the sum of its proper divisors (11615086870).

13501531370 is a wasteful number, since it uses less digits than its factorization.

13501531370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51950.

The product of its (nonzero) digits is 4725, while the sum is 29.

The spelling of 13501531370 in words is "thirteen billion, five hundred one million, five hundred thirty-one thousand, three hundred seventy".