30920489465 has 8 divisors (see below), whose sum is σ = 37107580488. Its totient is φ = 24734396160.

The previous prime is 30920489447. The next prime is 30920489471. The reversal of 30920489465 is 56498402903.

It can be written as a sum of positive squares in 4 ways, for example, as 19064981776 + 11855507689 = 138076^2 + 108883^2 .

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

It is not a de Polignac number, because 30920489465 - 2¹⁸ = 30920227321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179462 + ... + 306671.

It is an arithmetic number, because the mean of its divisors is an integer number (4638447561).

Almost surely, 2^30920489465 is an apocalyptic number.

It is an amenable number.

30920489465 is a deficient number, since it is larger than the sum of its proper divisors (6187091023).

30920489465 is a wasteful number, since it uses less digits than its factorization.

30920489465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498859.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 30920489465 in words is "thirty billion, nine hundred twenty million, four hundred eighty-nine thousand, four hundred sixty-five".