615401395441 has 8 divisors (see below), whose sum is σ = 703322078720. Its totient is φ = 527482261728.

The previous prime is 615401395409. The next prime is 615401395459. The reversal of 615401395441 is 144593104516.

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 615401395441 - 2⁵ = 615401395409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (615401395471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648205 + ... + 1284901.

It is an arithmetic number, because the mean of its divisors is an integer number (87915259840).

Almost surely, 2^615401395441 is an apocalyptic number.

It is an amenable number.

615401395441 is a deficient number, since it is larger than the sum of its proper divisors (87920683279).

615401395441 is a wasteful number, since it uses less digits than its factorization.

615401395441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774783.

The product of its (nonzero) digits is 259200, while the sum is 43.

Adding to 615401395441 its reverse (144593104516), we get a palindrome (759994499957).

The spelling of 615401395441 in words is "six hundred fifteen billion, four hundred one million, three hundred ninety-five thousand, four hundred forty-one".