20089515740 has 48 divisors (see below), whose sum is σ = 51051010752. Its totient is φ = 6482666496.

The previous prime is 20089515739. The next prime is 20089515779. The reversal of 20089515740 is 4751598002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4218107 + ... + 4222866.

It is an arithmetic number, because the mean of its divisors is an integer number (1063562724).

Almost surely, 2^20089515740 is an apocalyptic number.

20089515740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20089515740 is an abundant number, since it is smaller than the sum of its proper divisors (30961495012).

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

20089515740 is a wasteful number, since it uses less digits than its factorization.

20089515740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8441006 (or 8441004 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 20089515740 in words is "twenty billion, eighty-nine million, five hundred fifteen thousand, seven hundred forty".