77650050620 has 12 divisors (see below), whose sum is σ = 163065106344. Its totient is φ = 31060020240.

The previous prime is 77650050619. The next prime is 77650050641. The reversal of 77650050620 is 2605005677.

It is a super-2 number, since 2×77650050620² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1941251246 + ... + 1941251285.

It is an arithmetic number, because the mean of its divisors is an integer number (13588758862).

Almost surely, 2^77650050620 is an apocalyptic number.

It is an amenable number.

77650050620 is an abundant number, since it is smaller than the sum of its proper divisors (85415055724).

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

77650050620 is a wasteful number, since it uses less digits than its factorization.

77650050620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3882502540 (or 3882502538 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The spelling of 77650050620 in words is "seventy-seven billion, six hundred fifty million, fifty thousand, six hundred twenty".