252780105102 has 32 divisors (see below), whose sum is σ = 608192736000. Its totient is φ = 68421682368.

The previous prime is 252780105101. The next prime is 252780105103. The reversal of 252780105102 is 201501087252.

It is an interprime number because it is at equal distance from previous prime (252780105101) and next prime (252780105103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252780105101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158382727 + ... + 158384322.

It is an arithmetic number, because the mean of its divisors is an integer number (19006023000).

Almost surely, 2^252780105102 is an apocalyptic number.

252780105102 is an abundant number, since it is smaller than the sum of its proper divisors (355412630898).

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

252780105102 is a wasteful number, since it uses less digits than its factorization.

252780105102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316767080.

The product of its (nonzero) digits is 11200, while the sum is 33.

The spelling of 252780105102 in words is "two hundred fifty-two billion, seven hundred eighty million, one hundred five thousand, one hundred two".