77110777140 has 48 divisors (see below), whose sum is σ = 215937610560. Its totient is φ = 20560261120.

The previous prime is 77110777127. The next prime is 77110777153. The reversal of 77110777140 is 4177701177.

It is an interprime number because it is at equal distance from previous prime (77110777127) and next prime (77110777153).

It is a super-2 number, since 2×77110777140² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77110777092 and 77110777101.

It is a congruent number.

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, 419956 + ... + 574964.

It is an arithmetic number, because the mean of its divisors is an integer number (4498700220).

Almost surely, 2^77110777140 is an apocalyptic number.

It is an amenable number.

77110777140 is an abundant number, since it is smaller than the sum of its proper divisors (138826833420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77110777140 is a wasteful number, since it uses less digits than its factorization.

77110777140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163312 (or 163310 counting only the distinct ones).

The product of its (nonzero) digits is 67228, while the sum is 42.

The spelling of 77110777140 in words is "seventy-seven billion, one hundred ten million, seven hundred seventy-seven thousand, one hundred forty".