77351996378 has 64 divisors (see below), whose sum is σ = 127731437568. Its totient is φ = 34985902080.

The previous prime is 77351996377. The next prime is 77351996411. The reversal of 77351996378 is 87369915377.

It is not an unprimeable number, because it can be changed into a prime (77351996377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28786151 + ... + 28788837.

It is an arithmetic number, because the mean of its divisors is an integer number (1995803712).

Almost surely, 2^77351996378 is an apocalyptic number.

77351996378 is a deficient number, since it is larger than the sum of its proper divisors (50379441190).

77351996378 is a wasteful number, since it uses less digits than its factorization.

77351996378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047.

The product of its digits is 60011280, while the sum is 65.

The spelling of 77351996378 in words is "seventy-seven billion, three hundred fifty-one million, nine hundred ninety-six thousand, three hundred seventy-eight".