7864505946 has 56 divisors (see below), whose sum is σ = 19295000064. Its totient is φ = 2383178760.

The previous prime is 7864505923. The next prime is 7864505993. The reversal of 7864505946 is 6495054687.

7864505946 is a `hidden beast` number, since 7 + 8 + 6 + 45 + 0 + 594 + 6 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 7864505892 and 7864505901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 229146 + ... + 261221.

Almost surely, 2^7864505946 is an apocalyptic number.

7864505946 is an abundant number, since it is smaller than the sum of its proper divisors (11430494118).

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

7864505946 is a wasteful number, since it uses less digits than its factorization.

7864505946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490398 (or 490383 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The square root of 7864505946 is about 88682.0497395048. The cubic root of 7864505946 is about 1988.6444769035.

The spelling of 7864505946 in words is "seven billion, eight hundred sixty-four million, five hundred five thousand, nine hundred forty-six".