19318875090 has 16 divisors (see below), whose sum is σ = 46365300288. Its totient is φ = 5151700016.

The previous prime is 19318875077. The next prime is 19318875097. The reversal of 19318875090 is 9057881391.

It is not an unprimeable number, because it can be changed into a prime (19318875097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321981222 + ... + 321981281.

It is an arithmetic number, because the mean of its divisors is an integer number (2897831268).

Almost surely, 2^19318875090 is an apocalyptic number.

19318875090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19318875090 is an abundant number, since it is smaller than the sum of its proper divisors (27046425198).

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

19318875090 is a wasteful number, since it uses less digits than its factorization.

19318875090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643962513.

The product of its (nonzero) digits is 544320, while the sum is 51.

It can be divided in two parts, 193188 and 75090, that added together give a triangular number (268278 = T₇₃₂).

The spelling of 19318875090 in words is "nineteen billion, three hundred eighteen million, eight hundred seventy-five thousand, ninety".