56346449851 has 4 divisors (see below), whose sum is σ = 57869326912. Its totient is φ = 54823572792.

The previous prime is 56346449813. The next prime is 56346449869. The reversal of 56346449851 is 15894464365.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56346449851 - 2⁹ = 56346449339 is a prime.

It is a super-2 number, since 2×56346449851² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56346449792 and 56346449801.

It is not an unprimeable number, because it can be changed into a prime (56346449351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761438475 + ... + 761438548.

It is an arithmetic number, because the mean of its divisors is an integer number (14467331728).

Almost surely, 2^56346449851 is an apocalyptic number.

56346449851 is a deficient number, since it is larger than the sum of its proper divisors (1522877061).

56346449851 is a wasteful number, since it uses less digits than its factorization.

56346449851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522877060.

The product of its digits is 12441600, while the sum is 55.

The spelling of 56346449851 in words is "fifty-six billion, three hundred forty-six million, four hundred forty-nine thousand, eight hundred fifty-one".