77732532321631 has 16 divisors (see below), whose sum is σ = 85001828820480. Its totient is φ = 70497187125120.

The previous prime is 77732532321589. The next prime is 77732532321637. The reversal of 77732532321631 is 13612323523777.

It is a cyclic number.

It is not a de Polignac number, because 77732532321631 - 2²⁵ = 77732498767199 is a prime.

It is a super-2 number, since 2×77732532321631² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77732532321637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5095060 + ... + 13469398.

It is an arithmetic number, because the mean of its divisors is an integer number (5312614301280).

Almost surely, 2^{77732532321631} is an apocalyptic number.

77732532321631 is a deficient number, since it is larger than the sum of its proper divisors (7269296498849).

77732532321631 is a wasteful number, since it uses less digits than its factorization.

77732532321631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8376366.

The product of its digits is 6667920, while the sum is 52.

The spelling of 77732532321631 in words is "seventy-seven trillion, seven hundred thirty-two billion, five hundred thirty-two million, three hundred twenty-one thousand, six hundred thirty-one".