77712795046 has 4 divisors (see below), whose sum is σ = 116569192572. Its totient is φ = 38856397522.

The previous prime is 77712795001. The next prime is 77712795053. The reversal of 77712795046 is 64059721777.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64059721777 = 32533 ⋅1969069.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19428198760 + ... + 19428198763.

It is an arithmetic number, because the mean of its divisors is an integer number (29142298143).

Almost surely, 2^77712795046 is an apocalyptic number.

77712795046 is a deficient number, since it is larger than the sum of its proper divisors (38856397526).

77712795046 is a wasteful number, since it uses less digits than its factorization.

77712795046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38856397525.

The product of its (nonzero) digits is 5186160, while the sum is 55.

The spelling of 77712795046 in words is "seventy-seven billion, seven hundred twelve million, seven hundred ninety-five thousand, forty-six".