13520557401834 has 32 divisors (see below), whose sum is σ = 31187655354240. Its totient is φ = 3827575881792.

The previous prime is 13520557401829. The next prime is 13520557401839. The reversal of 13520557401834 is 43810475502531.

It is an interprime number because it is at equal distance from previous prime (13520557401829) and next prime (13520557401839).

It is not an unprimeable number, because it can be changed into a prime (13520557401839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1476683649 + ... + 1476692804.

It is an arithmetic number, because the mean of its divisors is an integer number (974614229820).

Almost surely, 2^{13520557401834} is an apocalyptic number.

13520557401834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13520557401834 is an abundant number, since it is smaller than the sum of its proper divisors (17667097952406).

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

13520557401834 is a wasteful number, since it uses less digits than its factorization.

13520557401834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953376574.

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 13520557401834 in words is "thirteen trillion, five hundred twenty billion, five hundred fifty-seven million, four hundred one thousand, eight hundred thirty-four".