619240621980 has 192 divisors, whose sum is σ = 1852539776640. Its totient is φ = 154009829376.

The previous prime is 619240621973. The next prime is 619240622041. The reversal of 619240621980 is 89126042916.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 85657006 + ... + 85664234.

It is an arithmetic number, because the mean of its divisors is an integer number (9648644670).

Almost surely, 2^619240621980 is an apocalyptic number.

619240621980 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 619240621980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (926269888320).

619240621980 is an abundant number, since it is smaller than the sum of its proper divisors (1233299154660).

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

619240621980 is a wasteful number, since it uses less digits than its factorization.

619240621980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008 (or 8006 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 619240621980 in words is "six hundred nineteen billion, two hundred forty million, six hundred twenty-one thousand, nine hundred eighty".