615149794801 has 16 divisors (see below), whose sum is σ = 620144553600. Its totient is φ = 610177138560.

The previous prime is 615149794789. The next prime is 615149794811. The reversal of 615149794801 is 108497941516.

It is a cyclic number.

It is not a de Polignac number, because 615149794801 - 2¹¹ = 615149792753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (615149794811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97376895 + ... + 97383211.

It is an arithmetic number, because the mean of its divisors is an integer number (38759034600).

Almost surely, 2^615149794801 is an apocalyptic number.

It is an amenable number.

615149794801 is a deficient number, since it is larger than the sum of its proper divisors (4994758799).

615149794801 is a wasteful number, since it uses less digits than its factorization.

615149794801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7944.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 615149794801 in words is "six hundred fifteen billion, one hundred forty-nine million, seven hundred ninety-four thousand, eight hundred one".