20526392140 has 24 divisors (see below), whose sum is σ = 43173762912. Its totient is φ = 8197539840.

The previous prime is 20526392137. The next prime is 20526392191. The reversal of 20526392140 is 4129362502.

It is a junction number, because it is equal to n+sod(n) for n = 20526392096 and 20526392105.

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, 800629 + ... + 825868.

It is an arithmetic number, because the mean of its divisors is an integer number (1798906788).

Almost surely, 2^20526392140 is an apocalyptic number.

20526392140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20526392140 is an abundant number, since it is smaller than the sum of its proper divisors (22647370772).

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

20526392140 is a wasteful number, since it uses less digits than its factorization.

20526392140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627137 (or 1627135 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 20526392140 in words is "twenty billion, five hundred twenty-six million, three hundred ninety-two thousand, one hundred forty".