30855043517 has 8 divisors (see below), whose sum is σ = 32040589560. Its totient is φ = 29690115840.

The previous prime is 30855043507. The next prime is 30855043523. The reversal of 30855043517 is 71534055803.

It can be written as a sum of positive squares in 4 ways, for example, as 5027660836 + 25827382681 = 70906^2 + 160709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30855043517 - 2²⁸ = 30586608061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30855043507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5151542 + ... + 5157527.

It is an arithmetic number, because the mean of its divisors is an integer number (4005073695).

Almost surely, 2^30855043517 is an apocalyptic number.

It is an amenable number.

30855043517 is a deficient number, since it is larger than the sum of its proper divisors (1185546043).

30855043517 is a wasteful number, since it uses less digits than its factorization.

30855043517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10309183.

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 30855043517 in words is "thirty billion, eight hundred fifty-five million, forty-three thousand, five hundred seventeen".