30766117357 has 4 divisors (see below), whose sum is σ = 30767475676. Its totient is φ = 30764759040.

The previous prime is 30766117337. The next prime is 30766117363. The reversal of 30766117357 is 75371166703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75371166703 = 7 ⋅10767309529.

It can be written as a sum of positive squares in 2 ways, for example, as 3351367881 + 27414749476 = 57891^2 + 165574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30766117357 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 (30766117337) 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, 644598 + ... + 690679.

It is an arithmetic number, because the mean of its divisors is an integer number (7691868919).

Almost surely, 2^30766117357 is an apocalyptic number.

It is an amenable number.

30766117357 is a deficient number, since it is larger than the sum of its proper divisors (1358319).

30766117357 is a wasteful number, since it uses less digits than its factorization.

30766117357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358318.

The product of its (nonzero) digits is 555660, while the sum is 46.

The spelling of 30766117357 in words is "thirty billion, seven hundred sixty-six million, one hundred seventeen thousand, three hundred fifty-seven".