31408673450 has 48 divisors (see below), whose sum is σ = 72835498944. Its totient is φ = 9789715200.

The previous prime is 31408673449. The next prime is 31408673551. The reversal of 31408673450 is 5437680413.

It is a junction number, because it is equal to n+sod(n) for n = 31408673398 and 31408673407.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4075199 + ... + 4082898.

It is an arithmetic number, because the mean of its divisors is an integer number (1517406228).

Almost surely, 2^31408673450 is an apocalyptic number.

31408673450 is an abundant number, since it is smaller than the sum of its proper divisors (41426825494).

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

31408673450 is a wasteful number, since it uses less digits than its factorization.

31408673450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8158127 (or 8158122 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 31408673450 in words is "thirty-one billion, four hundred eight million, six hundred seventy-three thousand, four hundred fifty".