77732532321632 has 24 divisors (see below), whose sum is σ = 157172029037856. Its totient is φ = 37815826534272.

The previous prime is 77732532321589. The next prime is 77732532321637. The reversal of 77732532321632 is 23612323523777.

It is a super-2 number, since 2×77732532321632² (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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32826237128 + ... + 32826239495.

It is an arithmetic number, because the mean of its divisors is an integer number (6548834543244).

Almost surely, 2^{77732532321632} is an apocalyptic number.

It is an amenable number.

77732532321632 is an abundant number, since it is smaller than the sum of its proper divisors (79439496716224).

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

77732532321632 is a wasteful number, since it uses less digits than its factorization.

77732532321632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65652476670 (or 65652476662 counting only the distinct ones).

The product of its digits is 13335840, while the sum is 53.

The spelling of 77732532321632 in words is "seventy-seven trillion, seven hundred thirty-two billion, five hundred thirty-two million, three hundred twenty-one thousand, six hundred thirty-two".