20826311754940 has 24 divisors (see below), whose sum is σ = 43757133336000. Its totient is φ = 8326357339968.

The previous prime is 20826311754917. The next prime is 20826311754979. The reversal of 20826311754940 is 4945711362802.

It is a super-2 number, since 2×20826311754940² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 260419147 + ... + 260499106.

It is an arithmetic number, because the mean of its divisors is an integer number (1823213889000).

It is a 1-persistent number, because it is pandigital, but 2⋅20826311754940 = 41652623509880 is not.

Almost surely, 2^{20826311754940} is an apocalyptic number.

20826311754940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20826311754940 is an abundant number, since it is smaller than the sum of its proper divisors (22930821581060).

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

20826311754940 is a wasteful number, since it uses less digits than its factorization.

20826311754940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520920261 (or 520920259 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 20826311754940 in words is "twenty trillion, eight hundred twenty-six billion, three hundred eleven million, seven hundred fifty-four thousand, nine hundred forty".