18941469625 has 64 divisors (see below), whose sum is σ = 26575698240. Its totient is φ = 13381939200.

The previous prime is 18941469529. The next prime is 18941469637. The reversal of 18941469625 is 52696414981.

It can be written as a sum of positive squares in 32 ways, for example, as 13879431721 + 5062037904 = 117811^2 + 71148^2 .

It is not a de Polignac number, because 18941469625 - 2¹⁹ = 18940945337 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5323347 + ... + 5326903.

It is an arithmetic number, because the mean of its divisors is an integer number (415245285).

Almost surely, 2^18941469625 is an apocalyptic number.

It is an amenable number.

18941469625 is a deficient number, since it is larger than the sum of its proper divisors (7634228615).

18941469625 is a wasteful number, since it uses less digits than its factorization.

18941469625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727 (or 3717 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 55.

It can be divided in two parts, 18941 and 469625, that added together give a triangular number (488566 = T₉₈₈).

The spelling of 18941469625 in words is "eighteen billion, nine hundred forty-one million, four hundred sixty-nine thousand, six hundred twenty-five".