7812874386 has 32 divisors (see below), whose sum is σ = 17922009600. Its totient is φ = 2520281520.

The previous prime is 7812874361. The next prime is 7812874429. The reversal of 7812874386 is 6834782187.

It is a happy number.

7812874386 is a `hidden beast` number, since 78 + 128 + 74 + 386 = 666.

It is a super-2 number, since 2×7812874386² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2331921 + ... + 2335268.

It is an arithmetic number, because the mean of its divisors is an integer number (560062800).

Almost surely, 2^7812874386 is an apocalyptic number.

7812874386 is an abundant number, since it is smaller than the sum of its proper divisors (10109135214).

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

7812874386 is a wasteful number, since it uses less digits than its factorization.

7812874386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4667231 (or 4667225 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 54.

The square root of 7812874386 is about 88390.4654699815. The cubic root of 7812874386 is about 1984.2830104929.

The spelling of 7812874386 in words is "seven billion, eight hundred twelve million, eight hundred seventy-four thousand, three hundred eighty-six".