1056857861514 has 48 divisors (see below), whose sum is σ = 2647951574688. Its totient is φ = 278731742688.

The previous prime is 1056857861467. The next prime is 1056857861531. The reversal of 1056857861514 is 4151687586501.

It is a super-2 number, since 2×1056857861514² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 138255972 + ... + 138263615.

It is an arithmetic number, because the mean of its divisors is an integer number (55165657806).

Almost surely, 2^{1056857861514} is an apocalyptic number.

1056857861514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1056857861514 is an abundant number, since it is smaller than the sum of its proper divisors (1591093713174).

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

1056857861514 is a wasteful number, since it uses less digits than its factorization.

1056857861514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276519619 (or 276519612 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 57.

The spelling of 1056857861514 in words is "one trillion, fifty-six billion, eight hundred fifty-seven million, eight hundred sixty-one thousand, five hundred fourteen".