1634725323240 has 64 divisors (see below), whose sum is σ = 4952732204160. Its totient is φ = 431610643200.

The previous prime is 1634725323239. The next prime is 1634725323281. The reversal of 1634725323240 is 423235274361.

It is a junction number, because it is equal to n+sod(n) for n = 1634725323192 and 1634725323201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67427044 + ... + 67451283.

It is an arithmetic number, because the mean of its divisors is an integer number (77386440690).

Almost surely, 2^{1634725323240} is an apocalyptic number.

1634725323240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1634725323240 is an abundant number, since it is smaller than the sum of its proper divisors (3318006880920).

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

1634725323240 is a wasteful number, since it uses less digits than its factorization.

1634725323240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134878442 (or 134878438 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 42.

The spelling of 1634725323240 in words is "one trillion, six hundred thirty-four billion, seven hundred twenty-five million, three hundred twenty-three thousand, two hundred forty".