74977149240 has 96 divisors (see below), whose sum is σ = 278486563680. Its totient is φ = 17137633536.

The previous prime is 74977149239. The next prime is 74977149283. The reversal of 74977149240 is 4294177947.

It is a happy number.

74977149240 is a `hidden beast` number, since 7 + 49 + 7 + 71 + 492 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14873899 + ... + 14878938.

It is an arithmetic number, because the mean of its divisors is an integer number (2900901705).

Almost surely, 2^74977149240 is an apocalyptic number.

74977149240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74977149240 is an abundant number, since it is smaller than the sum of its proper divisors (203509414440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74977149240 is a wasteful number, since it uses less digits than its factorization.

74977149240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29752861 (or 29752854 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 74977149240 in words is "seventy-four billion, nine hundred seventy-seven million, one hundred forty-nine thousand, two hundred forty".