610618641 has 8 divisors (see below), whose sum is σ = 820373664. Its totient is φ = 403971360.

The previous prime is 610618621. The next prime is 610618669. The reversal of 610618641 is 146816016.

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

It is not a de Polignac number, because 610618641 - 2⁵ = 610618609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (610618621) 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, 776476 + ... + 777261.

It is an arithmetic number, because the mean of its divisors is an integer number (102546708).

Almost surely, 2^610618641 is an apocalyptic number.

It is an amenable number.

610618641 is a deficient number, since it is larger than the sum of its proper divisors (209755023).

610618641 is a wasteful number, since it uses less digits than its factorization.

610618641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553871.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 610618641 is about 24710.6989176753. The cubic root of 610618641 is about 848.3792140913.

The spelling of 610618641 in words is "six hundred ten million, six hundred eighteen thousand, six hundred forty-one".