7249477939 has 16 divisors (see below), whose sum is σ = 8257800960. Its totient is φ = 6299745760.

The previous prime is 7249477919. The next prime is 7249477993. The reversal of 7249477939 is 9397749427.

7249477939 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7249477939 - 2¹⁵ = 7249445171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7249477919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413157 + ... + 430345.

It is an arithmetic number, because the mean of its divisors is an integer number (516112560).

Almost surely, 2^7249477939 is an apocalyptic number.

7249477939 is a deficient number, since it is larger than the sum of its proper divisors (1008323021).

7249477939 is a wasteful number, since it uses less digits than its factorization.

7249477939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18890.

The product of its digits is 24004512, while the sum is 61.

The square root of 7249477939 is about 85143.8661266917. The cubic root of 7249477939 is about 1935.3918632510.

The spelling of 7249477939 in words is "seven billion, two hundred forty-nine million, four hundred seventy-seven thousand, nine hundred thirty-nine".