619497794916 has 576 divisors, whose sum is σ = 2206184128512. Its totient is φ = 141367680000.

The previous prime is 619497794887. The next prime is 619497794921.

619497794916 is a `hidden beast` number, since 6 + 19 + 497 + 79 + 49 + 16 = 666.

619497794916 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

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, 68139531 + ... + 68148621.

Almost surely, 2^619497794916 is an apocalyptic number.

619497794916 is a gapful number since it is divisible by the number (66) 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 619497794916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1103092064256).

619497794916 is an abundant number, since it is smaller than the sum of its proper divisors (1586686333596).

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

619497794916 is a wasteful number, since it uses less digits than its factorization.

619497794916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9224 (or 9219 counting only the distinct ones).

The product of its digits is 185177664, while the sum is 72.

The spelling of 619497794916 in words is "six hundred nineteen billion, four hundred ninety-seven million, seven hundred ninety-four thousand, nine hundred sixteen".