77494655555 has 16 divisors (see below), whose sum is σ = 93412306944. Its totient is φ = 61716908640.

The previous prime is 77494655543. The next prime is 77494655561. The reversal of 77494655555 is 55555649477.

It is not a de Polignac number, because 77494655555 - 2¹² = 77494651459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1935590 + ... + 1975220.

It is an arithmetic number, because the mean of its divisors is an integer number (5838269184).

Almost surely, 2^77494655555 is an apocalyptic number.

77494655555 is a deficient number, since it is larger than the sum of its proper divisors (15917651389).

77494655555 is a wasteful number, since it uses less digits than its factorization.

77494655555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41386.

The product of its digits is 132300000, while the sum is 62.

The spelling of 77494655555 in words is "seventy-seven billion, four hundred ninety-four million, six hundred fifty-five thousand, five hundred fifty-five".