247890253772 has 24 divisors (see below), whose sum is σ = 503908060320. Its totient is φ = 104497061760.

The previous prime is 247890253763. The next prime is 247890253777. The reversal of 247890253772 is 277352098742.

It is a super-2 number, since 2×247890253772² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247890253777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72565697 + ... + 72569112.

It is an arithmetic number, because the mean of its divisors is an integer number (20996169180).

Almost surely, 2^247890253772 is an apocalyptic number.

It is an amenable number.

247890253772 is an abundant number, since it is smaller than the sum of its proper divisors (256017806548).

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

247890253772 is a wasteful number, since it uses less digits than its factorization.

247890253772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145134881 (or 145134879 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 56.

The spelling of 247890253772 in words is "two hundred forty-seven billion, eight hundred ninety million, two hundred fifty-three thousand, seven hundred seventy-two".