20308714915 has 36 divisors (see below), whose sum is σ = 25883834256. Its totient is φ = 15268104192.

The previous prime is 20308714897. The next prime is 20308714949. The reversal of 20308714915 is 51941780302.

It is not a de Polignac number, because 20308714915 - 2¹⁹ = 20308190627 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 148238727 + ... + 148238863.

It is an arithmetic number, because the mean of its divisors is an integer number (718995396).

Almost surely, 2^20308714915 is an apocalyptic number.

20308714915 is a deficient number, since it is larger than the sum of its proper divisors (5575119341).

20308714915 is an frugal number, since it uses more digits than its factorization.

20308714915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 20308714915 in words is "twenty billion, three hundred eight million, seven hundred fourteen thousand, nine hundred fifteen".