7864278076 has 12 divisors (see below), whose sum is σ = 13787650408. Its totient is φ = 3924949392.

The previous prime is 7864278073. The next prime is 7864278113. The reversal of 7864278076 is 6708724687.

It is a happy number.

It is a super-3 number, since 3×7864278076³ (a number of 31 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7864278073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1794951 + ... + 1799326.

Almost surely, 2^7864278076 is an apocalyptic number.

It is an amenable number.

7864278076 is a deficient number, since it is larger than the sum of its proper divisors (5923372332).

7864278076 is a wasteful number, since it uses less digits than its factorization.

7864278076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3594828 (or 3594826 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 55.

The square root of 7864278076 is about 88680.7649718923. The cubic root of 7864278076 is about 1988.6252700690.

The spelling of 7864278076 in words is "seven billion, eight hundred sixty-four million, two hundred seventy-eight thousand, seventy-six".