74381541137279 has 4 divisors (see below), whose sum is σ = 74382799916376. Its totient is φ = 74380282358184.

The previous prime is 74381541137263. The next prime is 74381541137329. The reversal of 74381541137279 is 97273114518347.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74381541137279 - 2⁴ = 74381541137263 is a prime.

It is a super-2 number, since 2×74381541137279² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74381541187279) 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, 629300909 + ... + 629419094.

It is an arithmetic number, because the mean of its divisors is an integer number (18595699979094).

Almost surely, 2^{74381541137279} is an apocalyptic number.

74381541137279 is a deficient number, since it is larger than the sum of its proper divisors (1258779097).

74381541137279 is a wasteful number, since it uses less digits than its factorization.

74381541137279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258779096.

The product of its digits is 35562240, while the sum is 62.

The spelling of 74381541137279 in words is "seventy-four trillion, three hundred eighty-one billion, five hundred forty-one million, one hundred thirty-seven thousand, two hundred seventy-nine".