77009898658 has 32 divisors (see below), whose sum is σ = 144902108160. Its totient is φ = 29819774160.

The previous prime is 77009898613. The next prime is 77009898671. The reversal of 77009898658 is 85689890077.

It is a junction number, because it is equal to n+sod(n) for n = 77009898593 and 77009898602.

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, 1508838 + ... + 1559041.

It is an arithmetic number, because the mean of its divisors is an integer number (4528190880).

Almost surely, 2^77009898658 is an apocalyptic number.

77009898658 is a deficient number, since it is larger than the sum of its proper divisors (67892209502).

77009898658 is a wasteful number, since it uses less digits than its factorization.

77009898658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068062.

The product of its (nonzero) digits is 60963840, while the sum is 67.

The spelling of 77009898658 in words is "seventy-seven billion, nine million, eight hundred ninety-eight thousand, six hundred fifty-eight".