247389349662 has 480 divisors, whose sum is σ = 759177619200. Its totient is φ = 59413616640.

The previous prime is 247389349637. The next prime is 247389349759. The reversal of 247389349662 is 266943983742.

247389349662 is a `hidden beast` number, since 2 + 4 + 7 + 3 + 89 + 3 + 496 + 62 = 666.

It is a super-2 number, since 2×247389349662² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 247389349662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 54380964 + ... + 54385512.

It is an arithmetic number, because the mean of its divisors is an integer number (1581620040).

Almost surely, 2^247389349662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247389349662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379588809600).

247389349662 is an abundant number, since it is smaller than the sum of its proper divisors (511788269538).

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

247389349662 is a wasteful number, since it uses less digits than its factorization.

247389349662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638 (or 4622 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 63.

The spelling of 247389349662 in words is "two hundred forty-seven billion, three hundred eighty-nine million, three hundred forty-nine thousand, six hundred sixty-two".