615023616479 has 4 divisors (see below), whose sum is σ = 615077810160. Its totient is φ = 614969422800.

The previous prime is 615023616377. The next prime is 615023616503. The reversal of 615023616479 is 974616320516.

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 615023616479 - 2²⁸ = 614755181023 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 (615023616079) 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, 27079814 + ... + 27102515.

It is an arithmetic number, because the mean of its divisors is an integer number (153769452540).

Almost surely, 2^615023616479 is an apocalyptic number.

615023616479 is a deficient number, since it is larger than the sum of its proper divisors (54193681).

615023616479 is a wasteful number, since it uses less digits than its factorization.

615023616479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54193680.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 615023616479 in words is "six hundred fifteen billion, twenty-three million, six hundred sixteen thousand, four hundred seventy-nine".