30343890757 has 16 divisors (see below), whose sum is σ = 31058083840. Its totient is φ = 29639658672.

The previous prime is 30343890751. The next prime is 30343890761. The reversal of 30343890757 is 75709834303.

It is a cyclic number.

It is not a de Polignac number, because 30343890757 - 2²³ = 30335502149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30343890757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30343890751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2866288 + ... + 2876854.

It is an arithmetic number, because the mean of its divisors is an integer number (1941130240).

Almost surely, 2^30343890757 is an apocalyptic number.

It is an amenable number.

30343890757 is a deficient number, since it is larger than the sum of its proper divisors (714193083).

30343890757 is a wasteful number, since it uses less digits than its factorization.

30343890757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11032.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 30343890757 in words is "thirty billion, three hundred forty-three million, eight hundred ninety thousand, seven hundred fifty-seven".