261677610304622 has 32 divisors (see below), whose sum is σ = 400197920676480. Its totient is φ = 128281733432320.

The previous prime is 261677610304613. The next prime is 261677610304631. The reversal of 261677610304622 is 226403016776162.

It is an interprime number because it is at equal distance from previous prime (261677610304613) and next prime (261677610304631).

It is a super-2 number, since 2×261677610304622² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 982652972 + ... + 982919232.

It is an arithmetic number, because the mean of its divisors is an integer number (12506185021140).

Almost surely, 2^{261677610304622} is an apocalyptic number.

261677610304622 is a deficient number, since it is larger than the sum of its proper divisors (138520310371858).

261677610304622 is a wasteful number, since it uses less digits than its factorization.

261677610304622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272668.

The product of its (nonzero) digits is 6096384, while the sum is 53.

The spelling of 261677610304622 in words is "two hundred sixty-one trillion, six hundred seventy-seven billion, six hundred ten million, three hundred four thousand, six hundred twenty-two".