77880904983374 has 4 divisors (see below), whose sum is σ = 116821357475064. Its totient is φ = 38940452491686.

The previous prime is 77880904983281. The next prime is 77880904983377. The reversal of 77880904983374 is 47338940908877.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×77880904983374² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77880904983295 and 77880904983304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77880904983377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19470226245842 + ... + 19470226245845.

It is an arithmetic number, because the mean of its divisors is an integer number (29205339368766).

Almost surely, 2^{77880904983374} is an apocalyptic number.

77880904983374 is a deficient number, since it is larger than the sum of its proper divisors (38940452491690).

77880904983374 is a wasteful number, since it uses less digits than its factorization.

77880904983374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38940452491689.

The product of its (nonzero) digits is 2048385024, while the sum is 77.

The spelling of 77880904983374 in words is "seventy-seven trillion, eight hundred eighty billion, nine hundred four million, nine hundred eighty-three thousand, three hundred seventy-four".