619740219504 has 160 divisors (see below), whose sum is σ = 1914607489024. Its totient is φ = 169009182720.

The previous prime is 619740219467. The next prime is 619740219509. The reversal of 619740219504 is 405912047916.

It is a happy number.

It is a super-2 number, since 2×619740219504² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (619740219509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352842 + ... + 1167894.

Almost surely, 2^619740219504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 619740219504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (957303744512).

619740219504 is an abundant number, since it is smaller than the sum of its proper divisors (1294867269520).

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

619740219504 is a wasteful number, since it uses less digits than its factorization.

619740219504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815175 (or 815169 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 619740219504 in words is "six hundred nineteen billion, seven hundred forty million, two hundred nineteen thousand, five hundred four".