84001074957 has 12 divisors (see below), whose sum is σ = 121354067484. Its totient is φ = 55991863680.

The previous prime is 84001074919. The next prime is 84001075001. The reversal of 84001074957 is 75947010048.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66653814276 + 17347260681 = 258174^2 + 131709^2 .

It is not a de Polignac number, because 84001074957 - 2¹² = 84001070861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84001074907) 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, 677394 + ... + 791747.

It is an arithmetic number, because the mean of its divisors is an integer number (10112838957).

Almost surely, 2^84001074957 is an apocalyptic number.

It is an amenable number.

84001074957 is a deficient number, since it is larger than the sum of its proper divisors (37352992527).

84001074957 is a wasteful number, since it uses less digits than its factorization.

84001074957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475500 (or 1475497 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 84001074957 in words is "eighty-four billion, one million, seventy-four thousand, nine hundred fifty-seven".