7021126342864 has 40 divisors (see below), whose sum is σ = 14048331246080. Its totient is φ = 3395848579200.

The previous prime is 7021126342837. The next prime is 7021126342877. The reversal of 7021126342864 is 4682436211207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1916379 + ... + 4208890.

It is an arithmetic number, because the mean of its divisors is an integer number (351208281152).

Almost surely, 2^{7021126342864} is an apocalyptic number.

It is an amenable number.

7021126342864 is an abundant number, since it is smaller than the sum of its proper divisors (7027204903216).

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

7021126342864 is a wasteful number, since it uses less digits than its factorization.

7021126342864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6127619 (or 6127613 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 7021126342864 in words is "seven trillion, twenty-one billion, one hundred twenty-six million, three hundred forty-two thousand, eight hundred sixty-four".