74194079715 has 24 divisors (see below), whose sum is σ = 146974939488. Its totient is φ = 33917293440.

The previous prime is 74194079711. The next prime is 74194079723. The reversal of 74194079715 is 51797049147.

It is a happy number.

It is not a de Polignac number, because 74194079715 - 2² = 74194079711 is a prime.

It is a super-2 number, since 2×74194079715² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74194079711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117768066 + ... + 117768695.

It is an arithmetic number, because the mean of its divisors is an integer number (6123955812).

Almost surely, 2^74194079715 is an apocalyptic number.

74194079715 is a deficient number, since it is larger than the sum of its proper divisors (72780859773).

74194079715 is a wasteful number, since it uses less digits than its factorization.

74194079715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235536779 (or 235536776 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 54.

The spelling of 74194079715 in words is "seventy-four billion, one hundred ninety-four million, seventy-nine thousand, seven hundred fifteen".