619242956640 has 1152 divisors, whose sum is σ = 2895368716800. Its totient is φ = 121892843520.

The previous prime is 619242956639. The next prime is 619242956677. The reversal of 619242956640 is 46659242916.

619242956640 is a `hidden beast` number, since 6 + 19 + 2 + 4 + 29 + 566 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 44234122 + ... + 44248118.

It is an arithmetic number, because the mean of its divisors is an integer number (2513340900).

Almost surely, 2^619242956640 is an apocalyptic number.

619242956640 is a gapful number since it is divisible by the number (60) 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 619242956640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1447684358400).

619242956640 is an abundant number, since it is smaller than the sum of its proper divisors (2276125760160).

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

619242956640 is a wasteful number, since it uses less digits than its factorization.

619242956640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14065 (or 14044 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 619242956640 in words is "six hundred nineteen billion, two hundred forty-two million, nine hundred fifty-six thousand, six hundred forty".