252901780028 has 24 divisors (see below), whose sum is σ = 454565218800. Its totient is φ = 123026387328.

The previous prime is 252901780013. The next prime is 252901780031. The reversal of 252901780028 is 820087109252.

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, 3457943 + ... + 3530321.

It is an arithmetic number, because the mean of its divisors is an integer number (18940217450).

Almost surely, 2^252901780028 is an apocalyptic number.

It is an amenable number.

252901780028 is a deficient number, since it is larger than the sum of its proper divisors (201663438772).

252901780028 is a wasteful number, since it uses less digits than its factorization.

252901780028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96029 (or 96027 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 252901780028 in words is "two hundred fifty-two billion, nine hundred one million, seven hundred eighty thousand, twenty-eight".