20383889715 has 48 divisors (see below), whose sum is σ = 40407883776. Its totient is φ = 9311803200.

The previous prime is 20383889693. The next prime is 20383889749. The reversal of 20383889715 is 51798838302.

It is not a de Polignac number, because 20383889715 - 2⁶ = 20383889651 is a prime.

It is a super-3 number, since 3×20383889715³ (a number of 32 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 441370 + ... + 485360.

It is an arithmetic number, because the mean of its divisors is an integer number (841830912).

Almost surely, 2^20383889715 is an apocalyptic number.

20383889715 is a deficient number, since it is larger than the sum of its proper divisors (20023994061).

20383889715 is a wasteful number, since it uses less digits than its factorization.

20383889715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45480 (or 45477 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 20383889715 in words is "twenty billion, three hundred eighty-three million, eight hundred eighty-nine thousand, seven hundred fifteen".