32780078087638 has 24 divisors (see below), whose sum is σ = 57437213119200. Its totient is φ = 13989824111088.

The previous prime is 32780078087623. The next prime is 32780078087639. The reversal of 32780078087638 is 83678087008723.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32780078087639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 699747693 + ... + 699794536.

It is an arithmetic number, because the mean of its divisors is an integer number (2393217213300).

Almost surely, 2^{32780078087638} is an apocalyptic number.

32780078087638 is a deficient number, since it is larger than the sum of its proper divisors (24657135031562).

32780078087638 is a wasteful number, since it uses less digits than its factorization.

32780078087638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399542484 (or 1399542477 counting only the distinct ones).

The product of its (nonzero) digits is 151732224, while the sum is 67.

The spelling of 32780078087638 in words is "thirty-two trillion, seven hundred eighty billion, seventy-eight million, eighty-seven thousand, six hundred thirty-eight".