20027691876 has 24 divisors (see below), whose sum is σ = 48763076544. Its totient is φ = 6385640800.

The previous prime is 20027691869. The next prime is 20027691877. The reversal of 20027691876 is 67819672002.

It is a super-2 number, since 2×20027691876² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20027691877) 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, 36281775 + ... + 36282326.

It is an arithmetic number, because the mean of its divisors is an integer number (2031794856).

Almost surely, 2^20027691876 is an apocalyptic number.

It is an amenable number.

20027691876 is an abundant number, since it is smaller than the sum of its proper divisors (28735384668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20027691876 is a wasteful number, since it uses less digits than its factorization.

20027691876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72564131 (or 72564129 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 20027691876 in words is "twenty billion, twenty-seven million, six hundred ninety-one thousand, eight hundred seventy-six".