77086154018 has 64 divisors (see below), whose sum is σ = 124337656800. Its totient is φ = 35774914560.

The previous prime is 77086154003. The next prime is 77086154021. The reversal of 77086154018 is 81045168077.

It can be written as a sum of positive squares in 16 ways, for example, as 1811098249 + 75275055769 = 42557^2 + 274363^2 .

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, 96719996 + ... + 96720792.

Almost surely, 2^77086154018 is an apocalyptic number.

77086154018 is a deficient number, since it is larger than the sum of its proper divisors (47251502782).

77086154018 is a wasteful number, since it uses less digits than its factorization.

77086154018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415.

The product of its (nonzero) digits is 376320, while the sum is 47.

The spelling of 77086154018 in words is "seventy-seven billion, eighty-six million, one hundred fifty-four thousand, eighteen".