974900855261 has 16 divisors (see below), whose sum is σ = 1086660468864. Its totient is φ = 869893161984.

The previous prime is 974900855239. The next prime is 974900855287. The reversal of 974900855261 is 162558009479.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-974900855261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 974900855197 and 974900855206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974900855221) by changing a digit.

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, 10988351 + ... + 11076716.

It is an arithmetic number, because the mean of its divisors is an integer number (67916279304).

Almost surely, 2^974900855261 is an apocalyptic number.

It is an amenable number.

974900855261 is a deficient number, since it is larger than the sum of its proper divisors (111759613603).

974900855261 is a wasteful number, since it uses less digits than its factorization.

974900855261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22065220.

The product of its (nonzero) digits is 5443200, while the sum is 56.

The spelling of 974900855261 in words is "nine hundred seventy-four billion, nine hundred million, eight hundred fifty-five thousand, two hundred sixty-one".