610610505091 has 16 divisors (see below), whose sum is σ = 624094280704. Its totient is φ = 597268836864.

The previous prime is 610610505083. The next prime is 610610505107. The reversal of 610610505091 is 190505016016.

It is a cyclic number.

It is not a de Polignac number, because 610610505091 - 2³ = 610610505083 is a prime.

It is a super-2 number, since 2×610610505091² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (610610505041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26475721 + ... + 26498773.

It is an arithmetic number, because the mean of its divisors is an integer number (39005892544).

Almost surely, 2^610610505091 is an apocalyptic number.

610610505091 is a deficient number, since it is larger than the sum of its proper divisors (13483775613).

610610505091 is a wasteful number, since it uses less digits than its factorization.

610610505091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26110.

The product of its (nonzero) digits is 8100, while the sum is 34.

The spelling of 610610505091 in words is "six hundred ten billion, six hundred ten million, five hundred five thousand, ninety-one".