74376774087 has 128 divisors (see below), whose sum is σ = 131086417920. Its totient is φ = 36391680000.

The previous prime is 74376774067. The next prime is 74376774089. The reversal of 74376774087 is 78047767347.

It is a happy number.

It is not a de Polignac number, because 74376774087 - 2¹⁰ = 74376773063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74376774087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74376774089) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 41296587 + ... + 41298387.

It is an arithmetic number, because the mean of its divisors is an integer number (1024112640).

Almost surely, 2^74376774087 is an apocalyptic number.

74376774087 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

74376774087 is a deficient number, since it is larger than the sum of its proper divisors (56709643833).

74376774087 is a wasteful number, since it uses less digits than its factorization.

74376774087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005.

The product of its (nonzero) digits is 38723328, while the sum is 60.

The spelling of 74376774087 in words is "seventy-four billion, three hundred seventy-six million, seven hundred seventy-four thousand, eighty-seven".