610987757961 has 64 divisors (see below), whose sum is σ = 1003189299200. Its totient is φ = 322949846016.

The previous prime is 610987757911. The next prime is 610987757983. The reversal of 610987757961 is 169757789016.

It is not a de Polignac number, because 610987757961 - 2¹¹ = 610987755913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 610987757892 and 610987757901.

It is not an unprimeable number, because it can be changed into a prime (610987757911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66718995 + ... + 66728151.

It is an arithmetic number, because the mean of its divisors is an integer number (15674832800).

Almost surely, 2^610987757961 is an apocalyptic number.

It is an amenable number.

610987757961 is a deficient number, since it is larger than the sum of its proper divisors (392201541239).

610987757961 is a wasteful number, since it uses less digits than its factorization.

610987757961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13118.

The product of its (nonzero) digits is 40007520, while the sum is 66.

The spelling of 610987757961 in words is "six hundred ten billion, nine hundred eighty-seven million, seven hundred fifty-seven thousand, nine hundred sixty-one".