77140637146 has 32 divisors (see below), whose sum is σ = 129078869760. Its totient is φ = 34360713216.

The previous prime is 77140637117. The next prime is 77140637173. The reversal of 77140637146 is 64173604177.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 77140637096 and 77140637105.

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, 693055 + ... + 796621.

It is an arithmetic number, because the mean of its divisors is an integer number (4033714680).

Almost surely, 2^77140637146 is an apocalyptic number.

77140637146 is a deficient number, since it is larger than the sum of its proper divisors (51938232614).

77140637146 is a wasteful number, since it uses less digits than its factorization.

77140637146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104758.

The product of its (nonzero) digits is 592704, while the sum is 46.

The spelling of 77140637146 in words is "seventy-seven billion, one hundred forty million, six hundred thirty-seven thousand, one hundred forty-six".