619139801087 has 4 divisors (see below), whose sum is σ = 619147522896. Its totient is φ = 619132079280.

The previous prime is 619139801053. The next prime is 619139801123. The reversal of 619139801087 is 780108931916.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 619139801087 - 2²⁰ = 619138752511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (619139801017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3739358 + ... + 3901419.

It is an arithmetic number, because the mean of its divisors is an integer number (154786880724).

Almost surely, 2^619139801087 is an apocalyptic number.

619139801087 is a deficient number, since it is larger than the sum of its proper divisors (7721809).

619139801087 is an equidigital number, since it uses as much as digits as its factorization.

619139801087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7721808.

The product of its (nonzero) digits is 653184, while the sum is 53.

The spelling of 619139801087 in words is "six hundred nineteen billion, one hundred thirty-nine million, eight hundred one thousand, eighty-seven".