7234678899 has 36 divisors (see below), whose sum is σ = 12686846224. Its totient is φ = 3890909952.

The previous prime is 7234678861. The next prime is 7234678901. The reversal of 7234678899 is 9988764327.

7234678899 is a `hidden beast` number, since 7 + 2 + 3 + 467 + 88 + 99 = 666.

It is not a de Polignac number, because 7234678899 - 2²⁸ = 6966243443 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (7234578899) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 180472 + ... + 216885.

Almost surely, 2^7234678899 is an apocalyptic number.

7234678899 is a deficient number, since it is larger than the sum of its proper divisors (5452167325).

7234678899 is a wasteful number, since it uses less digits than its factorization.

7234678899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397404 (or 397384 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The square root of 7234678899 is about 85056.9156447611. The cubic root of 7234678899 is about 1934.0740003739.

The spelling of 7234678899 in words is "seven billion, two hundred thirty-four million, six hundred seventy-eight thousand, eight hundred ninety-nine".