1625046157740 has 96 divisors (see below), whose sum is σ = 4663788401664. Its totient is φ = 422533117440.

The previous prime is 1625046157739. The next prime is 1625046157751. The reversal of 1625046157740 is 477516405261.

It is a self number, because there is not a number n which added to its sum of digits gives 1625046157740.

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, 4108557 + ... + 4486683.

It is an arithmetic number, because the mean of its divisors is an integer number (48581129184).

Almost surely, 2^{1625046157740} is an apocalyptic number.

1625046157740 is a gapful number since it is divisible by the number (10) 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 1625046157740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2331894200832).

1625046157740 is an abundant number, since it is smaller than the sum of its proper divisors (3038742243924).

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

1625046157740 is a wasteful number, since it uses less digits than its factorization.

1625046157740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379927 (or 379925 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 1625046157740 in words is "one trillion, six hundred twenty-five billion, forty-six million, one hundred fifty-seven thousand, seven hundred forty".