961422866586 has 320 divisors, whose sum is σ = 2673457248000. Its totient is φ = 252506750976.

The previous prime is 961422866543. The next prime is 961422866587. The reversal of 961422866586 is 685668224169.

961422866586 is a `hidden beast` number, since 9 + 6 + 1 + 42 + 2 + 8 + 6 + 6 + 586 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (961422866587) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1250224410 + ... + 1250225178.

It is an arithmetic number, because the mean of its divisors is an integer number (8354553900).

Almost surely, 2^961422866586 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 961422866586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1336728624000).

961422866586 is an abundant number, since it is smaller than the sum of its proper divisors (1712034381414).

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

961422866586 is an equidigital number, since it uses as much as digits as its factorization.

961422866586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1143 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 63.

The spelling of 961422866586 in words is "nine hundred sixty-one billion, four hundred twenty-two million, eight hundred sixty-six thousand, five hundred eighty-six".