61607044857 has 8 divisors (see below), whose sum is σ = 82211126560. Its totient is φ = 41037163200.

The previous prime is 61607044823. The next prime is 61607044871. The reversal of 61607044857 is 75844070616.

61607044857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61607044857 - 2⁷ = 61607044729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61607040857) 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, 8545807 + ... + 8553012.

It is an arithmetic number, because the mean of its divisors is an integer number (10276390820).

Almost surely, 2^61607044857 is an apocalyptic number.

It is an amenable number.

61607044857 is a deficient number, since it is larger than the sum of its proper divisors (20604081703).

61607044857 is a wasteful number, since it uses less digits than its factorization.

61607044857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17100023.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 61607044857 in words is "sixty-one billion, six hundred seven million, forty-four thousand, eight hundred fifty-seven".