15855037232853 has 128 divisors (see below), whose sum is σ = 27632171843584. Its totient is φ = 7863290265600.

The previous prime is 15855037232849. The next prime is 15855037232897. The reversal of 15855037232853 is 35823273055851.

It is a happy number.

It is not a de Polignac number, because 15855037232853 - 2² = 15855037232849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15855037232793 and 15855037232802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15855037232803) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 41201013 + ... + 41584053.

It is an arithmetic number, because the mean of its divisors is an integer number (215876342528).

Almost surely, 2^{15855037232853} is an apocalyptic number.

15855037232853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15855037232853 is a deficient number, since it is larger than the sum of its proper divisors (11777134610731).

15855037232853 is a wasteful number, since it uses less digits than its factorization.

15855037232853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383235.

The product of its (nonzero) digits is 30240000, while the sum is 57.

The spelling of 15855037232853 in words is "fifteen trillion, eight hundred fifty-five billion, thirty-seven million, two hundred thirty-two thousand, eight hundred fifty-three".