20037873619 has 2 divisors, whose sum is σ = 20037873620. Its totient is φ = 20037873618.

The previous prime is 20037873521. The next prime is 20037873637. The reversal of 20037873619 is 91637873002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20037873619 - 2⁷ = 20037873491 is a prime.

It is a super-2 number, since 2×20037873619² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20037873719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10018936809 + 10018936810.

It is an arithmetic number, because the mean of its divisors is an integer number (10018936810).

Almost surely, 2^20037873619 is an apocalyptic number.

20037873619 is a deficient number, since it is larger than the sum of its proper divisors (1).

20037873619 is an equidigital number, since it uses as much as digits as its factorization.

20037873619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 20037873619 in words is "twenty billion, thirty-seven million, eight hundred seventy-three thousand, six hundred nineteen".