19249240074 has 32 divisors (see below), whose sum is σ = 38804451840. Its totient is φ = 6365478912.

The previous prime is 19249240057. The next prime is 19249240079. The reversal of 19249240074 is 47004294291.

It is not an unprimeable number, because it can be changed into a prime (19249240079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1439242 + ... + 1452554.

It is an arithmetic number, because the mean of its divisors is an integer number (1212639120).

Almost surely, 2^19249240074 is an apocalyptic number.

19249240074 is an abundant number, since it is smaller than the sum of its proper divisors (19555211766).

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

19249240074 is a wasteful number, since it uses less digits than its factorization.

19249240074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15214.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 19249240074 in words is "nineteen billion, two hundred forty-nine million, two hundred forty thousand, seventy-four".