5121657404642 has 8 divisors (see below), whose sum is σ = 7682520632832. Its totient is φ = 2560817193700.

The previous prime is 5121657404641. The next prime is 5121657404653. The reversal of 5121657404642 is 2464047561215.

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

It is not an unprimeable number, because it can be changed into a prime (5121657404641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5186834 + ... + 6094797.

It is an arithmetic number, because the mean of its divisors is an integer number (960315079104).

Almost surely, 2^{5121657404642} is an apocalyptic number.

5121657404642 is a deficient number, since it is larger than the sum of its proper divisors (2560863228190).

5121657404642 is a wasteful number, since it uses less digits than its factorization.

5121657404642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11508624.

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 5121657404642 in words is "five trillion, one hundred twenty-one billion, six hundred fifty-seven million, four hundred four thousand, six hundred forty-two".