247379622870 has 32 divisors (see below), whose sum is σ = 593737148160. Its totient is φ = 65965004640.

The previous prime is 247379622851. The next prime is 247379622883. The reversal of 247379622870 is 78226973742.

It is a happy number.

It is a super-2 number, since 2×247379622870² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247379622870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564465 + ... + 901875.

It is an arithmetic number, because the mean of its divisors is an integer number (18554285880).

Almost surely, 2^247379622870 is an apocalyptic number.

247379622870 is an abundant number, since it is smaller than the sum of its proper divisors (346357525290).

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

247379622870 is a wasteful number, since it uses less digits than its factorization.

247379622870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361860.

The product of its (nonzero) digits is 14224896, while the sum is 57.

The spelling of 247379622870 in words is "two hundred forty-seven billion, three hundred seventy-nine million, six hundred twenty-two thousand, eight hundred seventy".