19474492674 has 192 divisors, whose sum is σ = 50171498496. Its totient is φ = 4992938496.

The previous prime is 19474492669. The next prime is 19474492691. The reversal of 19474492674 is 47629447491.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25725504 + ... + 25726260.

It is an arithmetic number, because the mean of its divisors is an integer number (261309888).

Almost surely, 2^19474492674 is an apocalyptic number.

19474492674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19474492674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25085749248).

19474492674 is an abundant number, since it is smaller than the sum of its proper divisors (30697005822).

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

19474492674 is a wasteful number, since it uses less digits than its factorization.

19474492674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 962 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 57.

The spelling of 19474492674 in words is "nineteen billion, four hundred seventy-four million, four hundred ninety-two thousand, six hundred seventy-four".