19087400404 has 12 divisors (see below), whose sum is σ = 33405240064. Its totient is φ = 9543046104.

The previous prime is 19087400393. The next prime is 19087400413. The reversal of 19087400404 is 40400478091.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94644 + ... + 217099.

Almost surely, 2^19087400404 is an apocalyptic number.

It is an amenable number.

19087400404 is a deficient number, since it is larger than the sum of its proper divisors (14317839660).

19087400404 is a wasteful number, since it uses less digits than its factorization.

19087400404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327054 (or 327052 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

Adding to 19087400404 its reverse (40400478091), we get a palindrome (59487878495).

The spelling of 19087400404 in words is "nineteen billion, eighty-seven million, four hundred thousand, four hundred four".