74298872655 has 24 divisors (see below), whose sum is σ = 147182529312. Its totient is φ = 33965198784.

The previous prime is 74298872621. The next prime is 74298872663. The reversal of 74298872655 is 55627889247.

74298872655 is a `hidden beast` number, since 7 + 4 + 298 + 87 + 265 + 5 = 666.

It is not a de Polignac number, because 74298872655 - 2⁹ = 74298872143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 74298872592 and 74298872601.

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 23 ways as a sum of consecutive naturals, for example, 117934404 + ... + 117935033.

It is an arithmetic number, because the mean of its divisors is an integer number (6132605388).

Almost surely, 2^74298872655 is an apocalyptic number.

74298872655 is a deficient number, since it is larger than the sum of its proper divisors (72883656657).

74298872655 is a wasteful number, since it uses less digits than its factorization.

74298872655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235869455 (or 235869452 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 63.

The spelling of 74298872655 in words is "seventy-four billion, two hundred ninety-eight million, eight hundred seventy-two thousand, six hundred fifty-five".