31402348407 has 16 divisors (see below), whose sum is σ = 46973671680. Its totient is φ = 20731645656.

The previous prime is 31402348379. The next prime is 31402348421. The reversal of 31402348407 is 70484320413.

31402348407 is a `hidden beast` number, since 3 + 14 + 0 + 234 + 8 + 407 = 666.

It is not a de Polignac number, because 31402348407 - 2⁷ = 31402348279 is a prime.

It is a super-2 number, since 2×31402348407² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31402348427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5643093 + ... + 5648654.

It is an arithmetic number, because the mean of its divisors is an integer number (2935854480).

Almost surely, 2^31402348407 is an apocalyptic number.

31402348407 is a deficient number, since it is larger than the sum of its proper divisors (15571323273).

31402348407 is a wasteful number, since it uses less digits than its factorization.

31402348407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11291859 (or 11291853 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 31402348407 in words is "thirty-one billion, four hundred two million, three hundred forty-eight thousand, four hundred seven".