18937914607 has 2 divisors, whose sum is σ = 18937914608. Its totient is φ = 18937914606.

The previous prime is 18937914599. The next prime is 18937914661. The reversal of 18937914607 is 70641973981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18937914607 - 2³ = 18937914599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18967914607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9468957303 + 9468957304.

It is an arithmetic number, because the mean of its divisors is an integer number (9468957304).

Almost surely, 2^18937914607 is an apocalyptic number.

18937914607 is a deficient number, since it is larger than the sum of its proper divisors (1).

18937914607 is an equidigital number, since it uses as much as digits as its factorization.

18937914607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 18937914607 in words is "eighteen billion, nine hundred thirty-seven million, nine hundred fourteen thousand, six hundred seven".