77977963011 has 16 divisors (see below), whose sum is σ = 112008234240. Its totient is φ = 47969348640.

The previous prime is 77977963009. The next prime is 77977963027. The reversal of 77977963011 is 11036977977.

It is not a de Polignac number, because 77977963011 - 2¹ = 77977963009 is a prime.

It is a super-2 number, since 2×77977963011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77977963081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244695 + ... + 464576.

It is an arithmetic number, because the mean of its divisors is an integer number (7000514640).

Almost surely, 2^77977963011 is an apocalyptic number.

77977963011 is a deficient number, since it is larger than the sum of its proper divisors (34030271229).

77977963011 is a wasteful number, since it uses less digits than its factorization.

77977963011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712106.

The product of its (nonzero) digits is 3500658, while the sum is 57.

The spelling of 77977963011 in words is "seventy-seven billion, nine hundred seventy-seven million, nine hundred sixty-three thousand, eleven".