19149337902 has 32 divisors (see below), whose sum is σ = 39356712864. Its totient is φ = 6207756800.

The previous prime is 19149337819. The next prime is 19149337937. The reversal of 19149337902 is 20973394191.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44799 + ... + 200762.

It is an arithmetic number, because the mean of its divisors is an integer number (1229897277).

Almost surely, 2^19149337902 is an apocalyptic number.

19149337902 is an abundant number, since it is smaller than the sum of its proper divisors (20207374962).

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

19149337902 is a wasteful number, since it uses less digits than its factorization.

19149337902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245924.

The product of its (nonzero) digits is 367416, while the sum is 48.

The spelling of 19149337902 in words is "nineteen billion, one hundred forty-nine million, three hundred thirty-seven thousand, nine hundred two".