31254342678 has 24 divisors (see below), whose sum is σ = 72926800128. Its totient is φ = 9616720752.

The previous prime is 31254342677. The next prime is 31254342731. The reversal of 31254342678 is 87624345213.

31254342678 is a `hidden beast` number, since 3 + 1 + 2 + 543 + 42 + 67 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31254342673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66782550 + ... + 66783017.

It is an arithmetic number, because the mean of its divisors is an integer number (3038616672).

Almost surely, 2^31254342678 is an apocalyptic number.

31254342678 is an abundant number, since it is smaller than the sum of its proper divisors (41672457450).

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

31254342678 is a wasteful number, since it uses less digits than its factorization.

31254342678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133565588 (or 133565585 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The spelling of 31254342678 in words is "thirty-one billion, two hundred fifty-four million, three hundred forty-two thousand, six hundred seventy-eight".