77133616890 has 64 divisors (see below), whose sum is σ = 208464371712. Its totient is φ = 18095860800.

The previous prime is 77133616853. The next prime is 77133616927. The reversal of 77133616890 is 9861633177.

It is an interprime number because it is at equal distance from previous prime (77133616853) and next prime (77133616927).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3759742 + ... + 3780201.

It is an arithmetic number, because the mean of its divisors is an integer number (3257255808).

Almost surely, 2^77133616890 is an apocalyptic number.

77133616890 is an abundant number, since it is smaller than the sum of its proper divisors (131330754822).

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

77133616890 is a wasteful number, since it uses less digits than its factorization.

77133616890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7539995.

The product of its (nonzero) digits is 1143072, while the sum is 51.

The spelling of 77133616890 in words is "seventy-seven billion, one hundred thirty-three million, six hundred sixteen thousand, eight hundred ninety".