74390356915 has 16 divisors (see below), whose sum is σ = 102310089408. Its totient is φ = 50866016256.

The previous prime is 74390356891. The next prime is 74390357053. The reversal of 74390356915 is 51965309347.

It is a cyclic number.

It is not a de Polignac number, because 74390356915 - 2⁵ = 74390356883 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2998182 + ... + 3022891.

It is an arithmetic number, because the mean of its divisors is an integer number (6394380588).

Almost surely, 2^74390356915 is an apocalyptic number.

74390356915 is a deficient number, since it is larger than the sum of its proper divisors (27919732493).

74390356915 is a wasteful number, since it uses less digits than its factorization.

74390356915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6021438.

The product of its (nonzero) digits is 3061800, while the sum is 52.

The spelling of 74390356915 in words is "seventy-four billion, three hundred ninety million, three hundred fifty-six thousand, nine hundred fifteen".