615481939852 has 96 divisors (see below), whose sum is σ = 1227551512320. Its totient is φ = 267676565760.

The previous prime is 615481939841. The next prime is 615481939859. The reversal of 615481939852 is 258939184516.

615481939852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (615481939859) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182579727 + ... + 182583097.

It is an arithmetic number, because the mean of its divisors is an integer number (12786994920).

Almost surely, 2^615481939852 is an apocalyptic number.

It is an amenable number.

615481939852 is a deficient number, since it is larger than the sum of its proper divisors (612069572468).

615481939852 is a wasteful number, since it uses less digits than its factorization.

615481939852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4343 (or 4341 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 61.

The spelling of 615481939852 in words is "six hundred fifteen billion, four hundred eighty-one million, nine hundred thirty-nine thousand, eight hundred fifty-two".