32378551272 has 48 divisors (see below), whose sum is σ = 90715774500. Its totient is φ = 10420682496.

The previous prime is 32378551213. The next prime is 32378551273. The reversal of 32378551272 is 27215587323.

32378551272 is a `hidden beast` number, since 3 + 2 + 3 + 78 + 551 + 27 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30903530436 + 1475020836 = 175794^2 + 38406^2 .

It is not an unprimeable number, because it can be changed into a prime (32378551273) 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, 7751397 + ... + 7755572.

Almost surely, 2^32378551272 is an apocalyptic number.

It is an amenable number.

32378551272 is an abundant number, since it is smaller than the sum of its proper divisors (58337223228).

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

32378551272 is a wasteful number, since it uses less digits than its factorization.

32378551272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15507010 (or 15507003 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The spelling of 32378551272 in words is "thirty-two billion, three hundred seventy-eight million, five hundred fifty-one thousand, two hundred seventy-two".