15528807840413 has 8 divisors (see below), whose sum is σ = 17780013417600. Its totient is φ = 13285803377520.

The previous prime is 15528807840373. The next prime is 15528807840421. The reversal of 15528807840413 is 31404870882551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15528807840413 - 2⁶ = 15528807840349 is a prime.

It is a super-2 number, since 2×15528807840413² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15528807843413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2050274513 + ... + 2050282086.

It is an arithmetic number, because the mean of its divisors is an integer number (2222501677200).

Almost surely, 2^{15528807840413} is an apocalyptic number.

It is an amenable number.

15528807840413 is a deficient number, since it is larger than the sum of its proper divisors (2251205577187).

15528807840413 is an equidigital number, since it uses as much as digits as its factorization.

15528807840413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100557147.

The product of its (nonzero) digits is 8601600, while the sum is 56.

The spelling of 15528807840413 in words is "fifteen trillion, five hundred twenty-eight billion, eight hundred seven million, eight hundred forty thousand, four hundred thirteen".