7477138689 has 8 divisors (see below), whose sum is σ = 9983742912. Its totient is φ = 4977646800.

The previous prime is 7477138667. The next prime is 7477138703. The reversal of 7477138689 is 9868317747.

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

It is not a de Polignac number, because 7477138689 - 2⁵ = 7477138657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7477138649) 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, 1775629 + ... + 1779834.

It is an arithmetic number, because the mean of its divisors is an integer number (1247967864).

Almost surely, 2^7477138689 is an apocalyptic number.

It is an amenable number.

7477138689 is a deficient number, since it is larger than the sum of its proper divisors (2506604223).

7477138689 is a wasteful number, since it uses less digits than its factorization.

7477138689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556167.

The product of its digits is 14224896, while the sum is 60.

The square root of 7477138689 is about 86470.4498022301. The cubic root of 7477138689 is about 1955.4429295359.

The spelling of 7477138689 in words is "seven billion, four hundred seventy-seven million, one hundred thirty-eight thousand, six hundred eighty-nine".