4961809281456 has 40 divisors (see below), whose sum is σ = 14242230346160. Its totient is φ = 1653936427008.

The previous prime is 4961809281437. The next prime is 4961809281463. The reversal of 4961809281456 is 6541829081694.

4961809281456 is a `hidden beast` number, since 4 + 9 + 6 + 18 + 0 + 92 + 81 + 456 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 4961809281393 and 4961809281402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5742834385 + ... + 5742835248.

It is an arithmetic number, because the mean of its divisors is an integer number (356055758654).

Almost surely, 2^{4961809281456} is an apocalyptic number.

It is an amenable number.

4961809281456 is an abundant number, since it is smaller than the sum of its proper divisors (9280421064704).

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

4961809281456 is a wasteful number, since it uses less digits than its factorization.

4961809281456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11485669650 (or 11485669638 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 4961809281456 in words is "four trillion, nine hundred sixty-one billion, eight hundred nine million, two hundred eighty-one thousand, four hundred fifty-six".