1056378462613 has 4 divisors (see below), whose sum is σ = 1080945403648. Its totient is φ = 1031811521580.

The previous prime is 1056378462563. The next prime is 1056378462617. The reversal of 1056378462613 is 3162648736501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056378462613 is a prime.

It is a super-2 number, since 2×1056378462613² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056378462617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12283470453 + ... + 12283470538.

It is an arithmetic number, because the mean of its divisors is an integer number (270236350912).

Almost surely, 2^{1056378462613} is an apocalyptic number.

It is an amenable number.

1056378462613 is a deficient number, since it is larger than the sum of its proper divisors (24566941035).

1056378462613 is an equidigital number, since it uses as much as digits as its factorization.

1056378462613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24566941034.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 1056378462613 in words is "one trillion, fifty-six billion, three hundred seventy-eight million, four hundred sixty-two thousand, six hundred thirteen".