7111420784864 has 24 divisors (see below), whose sum is σ = 15273392368248. Its totient is φ = 3232463992960.

The previous prime is 7111420784833. The next prime is 7111420784891. The reversal of 7111420784864 is 4684870241117.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10101449627 + ... + 10101450330.

It is an arithmetic number, because the mean of its divisors is an integer number (636391348677).

Almost surely, 2^{7111420784864} is an apocalyptic number.

It is an amenable number.

7111420784864 is an abundant number, since it is smaller than the sum of its proper divisors (8161971583384).

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

7111420784864 is a wasteful number, since it uses less digits than its factorization.

7111420784864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20202899978 (or 20202899970 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 53.

The spelling of 7111420784864 in words is "seven trillion, one hundred eleven billion, four hundred twenty million, seven hundred eighty-four thousand, eight hundred sixty-four".