52912103031690 has 128 divisors (see below), whose sum is σ = 147304057835520. Its totient is φ = 11913070422528.

The previous prime is 52912103031679. The next prime is 52912103031709. The reversal of 52912103031690 is 9613030121925.

It is a super-2 number, since 2×52912103031690² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 307526406 + ... + 307698414.

It is an arithmetic number, because the mean of its divisors is an integer number (1150812951840).

Almost surely, 2^{52912103031690} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52912103031690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73652028917760).

52912103031690 is an abundant number, since it is smaller than the sum of its proper divisors (94391954803830).

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

52912103031690 is a wasteful number, since it uses less digits than its factorization.

52912103031690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193956.

The product of its (nonzero) digits is 87480, while the sum is 42.

The spelling of 52912103031690 in words is "fifty-two trillion, nine hundred twelve billion, one hundred three million, thirty-one thousand, six hundred ninety".