77711620036 has 6 divisors (see below), whose sum is σ = 135995335070. Its totient is φ = 38855810016.

The previous prime is 77711620003. The next prime is 77711620037. The reversal of 77711620036 is 63002611777.

It can be written as a sum of positive squares in only one way, i.e., 57063654400 + 20647965636 = 238880^2 + 143694^2 .

It is a super-3 number, since 3×77711620036³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (77711620037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9713952501 + ... + 9713952508.

Almost surely, 2^77711620036 is an apocalyptic number.

It is an amenable number.

77711620036 is a deficient number, since it is larger than the sum of its proper divisors (58283715034).

77711620036 is a wasteful number, since it uses less digits than its factorization.

77711620036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19427905013 (or 19427905011 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 40.

The spelling of 77711620036 in words is "seventy-seven billion, seven hundred eleven million, six hundred twenty thousand, thirty-six".