325638787541 has 4 divisors (see below), whose sum is σ = 326699500512. Its totient is φ = 324578074572.

The previous prime is 325638787457. The next prime is 325638787553. The reversal of 325638787541 is 145787836523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325638787541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325638787571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530356025 + ... + 530356638.

It is an arithmetic number, because the mean of its divisors is an integer number (81674875128).

Almost surely, 2^325638787541 is an apocalyptic number.

It is an amenable number.

325638787541 is a deficient number, since it is larger than the sum of its proper divisors (1060712971).

325638787541 is a wasteful number, since it uses less digits than its factorization.

325638787541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060712970.

The product of its digits is 33868800, while the sum is 59.

The spelling of 325638787541 in words is "three hundred twenty-five billion, six hundred thirty-eight million, seven hundred eighty-seven thousand, five hundred forty-one".