20947876190 has 16 divisors (see below), whose sum is σ = 37818070992. Its totient is φ = 8354285184.

The previous prime is 20947876163. The next prime is 20947876193. The reversal of 20947876190 is 9167874902.

It is a super-2 number, since 2×20947876190² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20947876193) 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, 3104624 + ... + 3111363.

It is an arithmetic number, because the mean of its divisors is an integer number (2363629437).

Almost surely, 2^20947876190 is an apocalyptic number.

20947876190 is a deficient number, since it is larger than the sum of its proper divisors (16870194802).

20947876190 is a wasteful number, since it uses less digits than its factorization.

20947876190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6216331.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 20947876190 in words is "twenty billion, nine hundred forty-seven million, eight hundred seventy-six thousand, one hundred ninety".