325129491344 has 60 divisors (see below), whose sum is σ = 735573705984. Its totient is φ = 136376400192.

The previous prime is 325129491277. The next prime is 325129491347. The reversal of 325129491344 is 443194921523.

It is a happy number.

It is a super-2 number, since 2×325129491344² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (325129491347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409664 + ... + 904479.

Almost surely, 2^325129491344 is an apocalyptic number.

It is an amenable number.

325129491344 is an abundant number, since it is smaller than the sum of its proper divisors (410444214640).

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

325129491344 is a wasteful number, since it uses less digits than its factorization.

325129491344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314252 (or 1314199 counting only the distinct ones).

The product of its digits is 933120, while the sum is 47.

The spelling of 325129491344 in words is "three hundred twenty-five billion, one hundred twenty-nine million, four hundred ninety-one thousand, three hundred forty-four".