19476296840 has 768 divisors, whose sum is σ = 65572208640. Its totient is φ = 5031936000.

The previous prime is 19476296831. The next prime is 19476296863. The reversal of 19476296840 is 4869267491.

It is a super-2 number, since 2×19476296840² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 274314005 + ... + 274314075.

It is an arithmetic number, because the mean of its divisors is an integer number (85380480).

Almost surely, 2^19476296840 is an apocalyptic number.

19476296840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19476296840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32786104320).

19476296840 is an abundant number, since it is smaller than the sum of its proper divisors (46095911800).

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

19476296840 is a wasteful number, since it uses less digits than its factorization.

19476296840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 19476296840 in words is "nineteen billion, four hundred seventy-six million, two hundred ninety-six thousand, eight hundred forty".