42065136175251 has 64 divisors (see below), whose sum is σ = 66861212737536. Its totient is φ = 23017844736000.

The previous prime is 42065136175219. The next prime is 42065136175261. The reversal of 42065136175251 is 15257163156024.

It is not a de Polignac number, because 42065136175251 - 2⁵ = 42065136175219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42065136175251.

It is not an unprimeable number, because it can be changed into a prime (42065136175261) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 366258331 + ... + 366373163.

It is an arithmetic number, because the mean of its divisors is an integer number (1044706449024).

Almost surely, 2^{42065136175251} is an apocalyptic number.

42065136175251 is a deficient number, since it is larger than the sum of its proper divisors (24796076562285).

42065136175251 is a wasteful number, since it uses less digits than its factorization.

42065136175251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120772.

The product of its (nonzero) digits is 1512000, while the sum is 48.

The spelling of 42065136175251 in words is "forty-two trillion, sixty-five billion, one hundred thirty-six million, one hundred seventy-five thousand, two hundred fifty-one".