31325132205378 has 24 divisors (see below), whose sum is σ = 74041221576816. Its totient is φ = 9492464304600.

The previous prime is 31325132205373. The next prime is 31325132205397. The reversal of 31325132205378 is 87350223152313.

31325132205378 is a `hidden beast` number, since 3 + 1 + 3 + 2 + 51 + 3 + 220 + 5 + 378 = 666.

It is not an unprimeable number, because it can be changed into a prime (31325132205373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79103869008 + ... + 79103869403.

It is an arithmetic number, because the mean of its divisors is an integer number (3085050899034).

Almost surely, 2^{31325132205378} is an apocalyptic number.

31325132205378 is an abundant number, since it is smaller than the sum of its proper divisors (42716089371438).

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

31325132205378 is a wasteful number, since it uses less digits than its factorization.

31325132205378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158207738430 (or 158207738427 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 31325132205378 in words is "thirty-one trillion, three hundred twenty-five billion, one hundred thirty-two million, two hundred five thousand, three hundred seventy-eight".