615312421802047 has 8 divisors (see below), whose sum is σ = 623989198080000. Its totient is φ = 606635934528120.

The previous prime is 615312421802017. The next prime is 615312421802051. The reversal of 615312421802047 is 740208124213516.

It is a happy number.

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 615312421802047 - 2⁴³ = 606516328779839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 615312421801988 and 615312421802006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (615312421802017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67961043 + ... + 76480900.

It is an arithmetic number, because the mean of its divisors is an integer number (77998649760000).

Almost surely, 2^{615312421802047} is an apocalyptic number.

615312421802047 is a deficient number, since it is larger than the sum of its proper divisors (8676776277953).

615312421802047 is a wasteful number, since it uses less digits than its factorization.

615312421802047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144502013.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 615312421802047 in words is "six hundred fifteen trillion, three hundred twelve billion, four hundred twenty-one million, eight hundred two thousand, forty-seven".