56813861894402 has 8 divisors (see below), whose sum is σ = 85433313523212. Its totient is φ = 28336090720000.

The previous prime is 56813861894341. The next prime is 56813861894411. The reversal of 56813861894402 is 20449816831865.

It can be written as a sum of positive squares in 2 ways, for example, as 36023535845521 + 20790326048881 = 6001961^2 + 4559641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×56813861894402² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35420112599 + ... + 35420114202.

Almost surely, 2^{56813861894402} is an apocalyptic number.

56813861894402 is a deficient number, since it is larger than the sum of its proper divisors (28619451628810).

56813861894402 is a wasteful number, since it uses less digits than its factorization.

56813861894402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70840227204.

The product of its (nonzero) digits is 79626240, while the sum is 65.

The spelling of 56813861894402 in words is "fifty-six trillion, eight hundred thirteen billion, eight hundred sixty-one million, eight hundred ninety-four thousand, four hundred two".