74775017255 has 16 divisors (see below), whose sum is σ = 91222578048. Its totient is φ = 58825440000.

The previous prime is 74775017249. The next prime is 74775017263. The reversal of 74775017255 is 55271057747.

It is not a de Polignac number, because 74775017255 - 2⁸ = 74775016999 is a prime.

It is a Duffinian number.

It is a congruent 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, 1373555 + ... + 1426955.

It is an arithmetic number, because the mean of its divisors is an integer number (5701411128).

Almost surely, 2^74775017255 is an apocalyptic number.

74775017255 is a deficient number, since it is larger than the sum of its proper divisors (16447560793).

74775017255 is a wasteful number, since it uses less digits than its factorization.

74775017255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58058.

The product of its (nonzero) digits is 2401000, while the sum is 50.

The spelling of 74775017255 in words is "seventy-four billion, seven hundred seventy-five million, seventeen thousand, two hundred fifty-five".