247722494364 has 36 divisors (see below), whose sum is σ = 632387301000. Its totient is φ = 81756597600.

The previous prime is 247722494351. The next prime is 247722494389. The reversal of 247722494364 is 463494227742.

247722494364 is a `hidden beast` number, since 2 + 4 + 77 + 22 + 494 + 3 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×247722494364² (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 247722494364.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34061614 + ... + 34068885.

Almost surely, 2^247722494364 is an apocalyptic number.

It is an amenable number.

247722494364 is an abundant number, since it is smaller than the sum of its proper divisors (384664806636).

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

247722494364 is a wasteful number, since it uses less digits than its factorization.

247722494364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68130610 (or 68130605 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 54.

The spelling of 247722494364 in words is "two hundred forty-seven billion, seven hundred twenty-two million, four hundred ninety-four thousand, three hundred sixty-four".