215426961748 has 24 divisors (see below), whose sum is σ = 378992718720. Its totient is φ = 107144448000.

The previous prime is 215426961731. The next prime is 215426961773. The reversal of 215426961748 is 847169624512.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632565 + ... + 911587.

It is an arithmetic number, because the mean of its divisors is an integer number (15791363280).

Almost surely, 2^215426961748 is an apocalyptic number.

It is an amenable number.

215426961748 is a deficient number, since it is larger than the sum of its proper divisors (163565756972).

215426961748 is a wasteful number, since it uses less digits than its factorization.

215426961748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280047 (or 280045 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The spelling of 215426961748 in words is "two hundred fifteen billion, four hundred twenty-six million, nine hundred sixty-one thousand, seven hundred forty-eight".