19101804740 has 24 divisors (see below), whose sum is σ = 40771395672. Its totient is φ = 7515463680.

The previous prime is 19101804739. The next prime is 19101804751. The reversal of 19101804740 is 4740810191.

It can be written as a sum of positive squares in 4 ways, for example, as 906304 + 19100898436 = 952^2 + 138206^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19101804740.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7827389 + ... + 7829828.

It is an arithmetic number, because the mean of its divisors is an integer number (1698808153).

Almost surely, 2^19101804740 is an apocalyptic number.

19101804740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19101804740 is an abundant number, since it is smaller than the sum of its proper divisors (21669590932).

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

19101804740 is a wasteful number, since it uses less digits than its factorization.

19101804740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15657287 (or 15657285 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 19101804740 in words is "nineteen billion, one hundred one million, eight hundred four thousand, seven hundred forty".