20373699740 has 12 divisors (see below), whose sum is σ = 42784769496. Its totient is φ = 8149479888.

The previous prime is 20373699733. The next prime is 20373699761. The reversal of 20373699740 is 4799637302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509342474 + ... + 509342513.

It is an arithmetic number, because the mean of its divisors is an integer number (3565397458).

Almost surely, 2^20373699740 is an apocalyptic number.

20373699740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20373699740 is an abundant number, since it is smaller than the sum of its proper divisors (22411069756).

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

20373699740 is a wasteful number, since it uses less digits than its factorization.

20373699740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018684996 (or 1018684994 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 50.

The spelling of 20373699740 in words is "twenty billion, three hundred seventy-three million, six hundred ninety-nine thousand, seven hundred forty".