30328732640757 has 4 divisors (see below), whose sum is σ = 40438310187680. Its totient is φ = 20219155093836.

The previous prime is 30328732640743. The next prime is 30328732640761. The reversal of 30328732640757 is 75704623782303.

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 not a de Polignac number, because 30328732640757 - 2²² = 30328728446453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30328732640697 and 30328732640706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30328732640357) 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, 5054788773457 + ... + 5054788773462.

It is an arithmetic number, because the mean of its divisors is an integer number (10109577546920).

Almost surely, 2^{30328732640757} is an apocalyptic number.

It is an amenable number.

30328732640757 is a deficient number, since it is larger than the sum of its proper divisors (10109577546923).

30328732640757 is a wasteful number, since it uses less digits than its factorization.

30328732640757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10109577546922.

The product of its (nonzero) digits is 35562240, while the sum is 57.

The spelling of 30328732640757 in words is "thirty trillion, three hundred twenty-eight billion, seven hundred thirty-two million, six hundred forty thousand, seven hundred fifty-seven".