7499449947 has 16 divisors (see below), whose sum is σ = 10913914368. Its totient is φ = 4542778080.

The previous prime is 7499449931. The next prime is 7499450011.

7499449947 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7499449947 - 2⁴ = 7499449931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7499449927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7518 + ... + 122700.

It is an arithmetic number, because the mean of its divisors is an integer number (682119648).

Almost surely, 2^7499449947 is an apocalyptic number.

7499449947 is a deficient number, since it is larger than the sum of its proper divisors (3414464421).

7499449947 is a wasteful number, since it uses less digits than its factorization.

7499449947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117170.

The product of its digits is 82301184, while the sum is 66.

The square root of 7499449947 is about 86599.3645877382. The cubic root of 7499449947 is about 1957.3859664214.

It can be divided in two parts, 7499 and 449947, that added together give a triangular number (457446 = T₉₅₆).

The spelling of 7499449947 in words is "seven billion, four hundred ninety-nine million, four hundred forty-nine thousand, nine hundred forty-seven".