77773236532 has 12 divisors (see below), whose sum is σ = 136645409376. Its totient is φ = 38731691000.

The previous prime is 77773236509. The next prime is 77773236533. The reversal of 77773236532 is 23563237777.

It is a self number, because there is not a number n which added to its sum of digits gives 77773236532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77773236533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38730688 + ... + 38732695.

It is an arithmetic number, because the mean of its divisors is an integer number (11387117448).

Almost surely, 2^77773236532 is an apocalyptic number.

It is an amenable number.

77773236532 is a deficient number, since it is larger than the sum of its proper divisors (58872172844).

77773236532 is a wasteful number, since it uses less digits than its factorization.

77773236532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77463638 (or 77463636 counting only the distinct ones).

The product of its digits is 7779240, while the sum is 52.

The spelling of 77773236532 in words is "seventy-seven billion, seven hundred seventy-three million, two hundred thirty-six thousand, five hundred thirty-two".