6532399994 has 8 divisors (see below), whose sum is σ = 10314315840. Its totient is φ = 3094294716.

The previous prime is 6532399981. The next prime is 6532399999. The reversal of 6532399994 is 4999932356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6532399994² = 85344499363222400072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6532399999) 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, 85952594 + ... + 85952669.

It is an arithmetic number, because the mean of its divisors is an integer number (1289289480).

Almost surely, 2^6532399994 is an apocalyptic number.

6532399994 is a deficient number, since it is larger than the sum of its proper divisors (3781915846).

6532399994 is a wasteful number, since it uses less digits than its factorization.

6532399994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171905284.

The product of its digits is 14171760, while the sum is 59.

The square root of 6532399994 is about 80823.2639405264. The cubic root of 6532399994 is about 1869.3512952887.

The spelling of 6532399994 in words is "six billion, five hundred thirty-two million, three hundred ninety-nine thousand, nine hundred ninety-four".