1420657784056 has 32 divisors (see below), whose sum is σ = 3050318960640. Its totient is φ = 607642879968.

The previous prime is 1420657784053. The next prime is 1420657784071. The reversal of 1420657784056 is 6504877560241.

It is a super-2 number, since 2×1420657784056² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1420657783988 and 1420657784006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420657784053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25189416 + ... + 25245751.

It is an arithmetic number, because the mean of its divisors is an integer number (95322467520).

Almost surely, 2^{1420657784056} is an apocalyptic number.

It is an amenable number.

1420657784056 is an abundant number, since it is smaller than the sum of its proper divisors (1629661176584).

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

1420657784056 is a wasteful number, since it uses less digits than its factorization.

1420657784056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50435683 (or 50435679 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 55.

The spelling of 1420657784056 in words is "one trillion, four hundred twenty billion, six hundred fifty-seven million, seven hundred eighty-four thousand, fifty-six".