619638840019 has 8 divisors (see below), whose sum is σ = 627135445440. Its totient is φ = 612142974696.

The previous prime is 619638839927. The next prime is 619638840053. The reversal of 619638840019 is 910048836916.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 619638840019 - 2²¹ = 619636742867 is a prime.

It is a super-2 number, since 2×619638840019² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (619638820019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1603504 + ... + 1952050.

It is an arithmetic number, because the mean of its divisors is an integer number (78391930680).

Almost surely, 2^619638840019 is an apocalyptic number.

619638840019 is a deficient number, since it is larger than the sum of its proper divisors (7496605421).

619638840019 is a wasteful number, since it uses less digits than its factorization.

619638840019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370049.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 619638840019 in words is "six hundred nineteen billion, six hundred thirty-eight million, eight hundred forty thousand, nineteen".