615341378656073 has 8 divisors (see below), whose sum is σ = 615629488513536. Its totient is φ = 615053270941600.

The previous prime is 615341378656021. The next prime is 615341378656079. The reversal of 615341378656073 is 370656873143516.

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 615341378656073 - 2⁶ = 615341378656009 is a prime.

It is a super-2 number, since 2×615341378656073² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (615341378656079) 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, 1133306768 + ... + 1133849598.

It is an arithmetic number, because the mean of its divisors is an integer number (76953686064192).

Almost surely, 2^{615341378656073} is an apocalyptic number.

It is an amenable number.

615341378656073 is a deficient number, since it is larger than the sum of its proper divisors (288109857463).

615341378656073 is a wasteful number, since it uses less digits than its factorization.

615341378656073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071495.

The product of its (nonzero) digits is 228614400, while the sum is 65.

The spelling of 615341378656073 in words is "six hundred fifteen trillion, three hundred forty-one billion, three hundred seventy-eight million, six hundred fifty-six thousand, seventy-three".