74139415294 has 8 divisors (see below), whose sum is σ = 127096140528. Its totient is φ = 31774035120.

The previous prime is 74139415283. The next prime is 74139415313. The reversal of 74139415294 is 49251493147.

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

It is a super-2 number, since 2×74139415294² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2647836247 + ... + 2647836274.

It is an arithmetic number, because the mean of its divisors is an integer number (15887017566).

Almost surely, 2^74139415294 is an apocalyptic number.

74139415294 is a deficient number, since it is larger than the sum of its proper divisors (52956725234).

74139415294 is a wasteful number, since it uses less digits than its factorization.

74139415294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5295672530.

The product of its digits is 1088640, while the sum is 49.

The spelling of 74139415294 in words is "seventy-four billion, one hundred thirty-nine million, four hundred fifteen thousand, two hundred ninety-four".