77777600038 has 8 divisors (see below), whose sum is σ = 119148664032. Its totient is φ = 38061378696.

The previous prime is 77777599979. The next prime is 77777600039. The reversal of 77777600038 is 83000677777.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77777600039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413710545 + ... + 413710732.

It is an arithmetic number, because the mean of its divisors is an integer number (14893583004).

Almost surely, 2^77777600038 is an apocalyptic number.

77777600038 is a deficient number, since it is larger than the sum of its proper divisors (41371063994).

77777600038 is a wasteful number, since it uses less digits than its factorization.

77777600038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827421326.

The product of its (nonzero) digits is 2420208, while the sum is 52.

The spelling of 77777600038 in words is "seventy-seven billion, seven hundred seventy-seven million, six hundred thousand, thirty-eight".