6862259978 has 12 divisors (see below), whose sum is σ = 11973943602. Its totient is φ = 2940968520.

The previous prime is 6862259941. The next prime is 6862259981. The reversal of 6862259978 is 8799522686.

It can be written as a sum of positive squares in only one way, i.e., 6447608209 + 414651769 = 80297^2 + 20363^2 .

It is a super-2 number, since 2×6862259978² = 94181224011321120968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6862259978.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35011433 + ... + 35011628.

Almost surely, 2^6862259978 is an apocalyptic number.

6862259978 is a deficient number, since it is larger than the sum of its proper divisors (5111683624).

6862259978 is a wasteful number, since it uses less digits than its factorization.

6862259978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70023077 (or 70023070 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 62.

The square root of 6862259978 is about 82838.7589115144. The cubic root of 6862259978 is about 1900.3009659893.

The spelling of 6862259978 in words is "six billion, eight hundred sixty-two million, two hundred fifty-nine thousand, nine hundred seventy-eight".