215292494648 has 32 divisors (see below), whose sum is σ = 503281157760. Its totient is φ = 83880192480.

The previous prime is 215292494639. The next prime is 215292494687. The reversal of 215292494648 is 846494292512.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 215292494593 and 215292494602.

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, 174749786 + ... + 174751017.

It is an arithmetic number, because the mean of its divisors is an integer number (15727536180).

Almost surely, 2^215292494648 is an apocalyptic number.

215292494648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

215292494648 is an abundant number, since it is smaller than the sum of its proper divisors (287988663112).

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

215292494648 is a wasteful number, since it uses less digits than its factorization.

215292494648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349500827 (or 349500823 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 56.

The spelling of 215292494648 in words is "two hundred fifteen billion, two hundred ninety-two million, four hundred ninety-four thousand, six hundred forty-eight".