57749944847 has 12 divisors (see below), whose sum is σ = 67291826976. Its totient is φ = 49416454080.

The previous prime is 57749944823. The next prime is 57749944871. The reversal of 57749944847 is 74844994775.

57749944847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57749944823) and next prime (57749944871).

It is not a de Polignac number, because 57749944847 - 2¹² = 57749940751 is a prime.

It is a super-2 number, since 2×57749944847² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57749944817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 964679 + ... + 1022792.

It is an arithmetic number, because the mean of its divisors is an integer number (5607652248).

Almost surely, 2^57749944847 is an apocalyptic number.

57749944847 is a deficient number, since it is larger than the sum of its proper divisors (9541882129).

57749944847 is a wasteful number, since it uses less digits than its factorization.

57749944847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988078 (or 1988071 counting only the distinct ones).

The product of its digits is 284497920, while the sum is 68.

The spelling of 57749944847 in words is "fifty-seven billion, seven hundred forty-nine million, nine hundred forty-four thousand, eight hundred forty-seven".