1251932314164 has 96 divisors (see below), whose sum is σ = 3370342300416. Its totient is φ = 354286141440.

The previous prime is 1251932314111. The next prime is 1251932314187. The reversal of 1251932314164 is 4614132391521.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14013124 + ... + 14102180.

It is an arithmetic number, because the mean of its divisors is an integer number (35107732296).

Almost surely, 2^{1251932314164} is an apocalyptic number.

1251932314164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1251932314164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1685171150208).

1251932314164 is an abundant number, since it is smaller than the sum of its proper divisors (2118409986252).

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

1251932314164 is a wasteful number, since it uses less digits than its factorization.

1251932314164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90665 (or 90663 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The spelling of 1251932314164 in words is "one trillion, two hundred fifty-one billion, nine hundred thirty-two million, three hundred fourteen thousand, one hundred sixty-four".