619941291904 has 64 divisors (see below), whose sum is σ = 1348226208000. Its totient is φ = 281601041920.

The previous prime is 619941291869. The next prime is 619941291953. The reversal of 619941291904 is 409192149916.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1945647 + ... + 2241745.

It is an arithmetic number, because the mean of its divisors is an integer number (21066034500).

Almost surely, 2^619941291904 is an apocalyptic number.

619941291904 is a gapful number since it is divisible by the number (64) 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 619941291904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674113104000).

619941291904 is an abundant number, since it is smaller than the sum of its proper divisors (728284916096).

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

619941291904 is a wasteful number, since it uses less digits than its factorization.

619941291904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297611 (or 297599 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 55.

The spelling of 619941291904 in words is "six hundred nineteen billion, nine hundred forty-one million, two hundred ninety-one thousand, nine hundred four".