75241249139 has 16 divisors (see below), whose sum is σ = 89979832320. Its totient is φ = 61557122880.

The previous prime is 75241249103. The next prime is 75241249177. The reversal of 75241249139 is 93194214257.

It is a cyclic number.

It is not a de Polignac number, because 75241249139 - 2²⁴ = 75224471923 is a prime.

It is a super-2 number, since 2×75241249139² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75241249093 and 75241249102.

It is not an unprimeable number, because it can be changed into a prime (75241249339) 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, 2359049 + ... + 2390730.

It is an arithmetic number, because the mean of its divisors is an integer number (5623739520).

Almost surely, 2^75241249139 is an apocalyptic number.

75241249139 is a deficient number, since it is larger than the sum of its proper divisors (14738583181).

75241249139 is a wasteful number, since it uses less digits than its factorization.

75241249139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4749890.

The product of its digits is 544320, while the sum is 47.

The spelling of 75241249139 in words is "seventy-five billion, two hundred forty-one million, two hundred forty-nine thousand, one hundred thirty-nine".