77037333136 has 15 divisors (see below), whose sum is σ = 149261984041. Its totient is φ = 38518111456.

The previous prime is 77037333133. The next prime is 77037333169. The reversal of 77037333136 is 63133373077.

The square root of 77037333136 is 277556.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 49481333136 + 27556000000 = 222444^2 + 166000^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77037333092 and 77037333101.

It is not an unprimeable number, because it can be changed into a prime (77037333133) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1075530 + ... + 1144918.

Almost surely, 2^77037333136 is an apocalyptic number.

77037333136 is the 277556-th square number.

It is an amenable number.

77037333136 is a deficient number, since it is larger than the sum of its proper divisors (72224650905).

77037333136 is an frugal number, since it uses more digits than its factorization.

77037333136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138786 (or 69391 counting only the distinct ones).

The product of its (nonzero) digits is 500094, while the sum is 43.

The spelling of 77037333136 in words is "seventy-seven billion, thirty-seven million, three hundred thirty-three thousand, one hundred thirty-six".