7445729899 has 8 divisors (see below), whose sum is σ = 7954591040. Its totient is φ = 6948566856.

The previous prime is 7445729843. The next prime is 7445729957. The reversal of 7445729899 is 9989275447.

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

It is a cyclic number.

It is not a de Polignac number, because 7445729899 - 2¹⁵ = 7445697131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7445729899.

It is not an unprimeable number, because it can be changed into a prime (7445759899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2923209 + ... + 2925754.

It is an arithmetic number, because the mean of its divisors is an integer number (994323880).

Almost surely, 2^7445729899 is an apocalyptic number.

7445729899 is a deficient number, since it is larger than the sum of its proper divisors (508861141).

7445729899 is a wasteful number, since it uses less digits than its factorization.

7445729899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5849049.

The product of its digits is 45722880, while the sum is 64.

The square root of 7445729899 is about 86288.6429317323. The cubic root of 7445729899 is about 1952.7010475298.

The spelling of 7445729899 in words is "seven billion, four hundred forty-five million, seven hundred twenty-nine thousand, eight hundred ninety-nine".