615989943040 has 36 divisors (see below), whose sum is σ = 1475488413504. Its totient is φ = 246395976704.

The previous prime is 615989942987. The next prime is 615989943053. The reversal of 615989943040 is 40349989516.

615989943040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240619792 + ... + 240622351.

It is an arithmetic number, because the mean of its divisors is an integer number (40985789264).

Almost surely, 2^615989943040 is an apocalyptic number.

It is an amenable number.

615989943040 is an abundant number, since it is smaller than the sum of its proper divisors (859498470464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

615989943040 is an equidigital number, since it uses as much as digits as its factorization.

615989943040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481242164 (or 481242150 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 58.

The spelling of 615989943040 in words is "six hundred fifteen billion, nine hundred eighty-nine million, nine hundred forty-three thousand, forty".