7138977941 has 8 divisors (see below), whose sum is σ = 7508312064. Its totient is φ = 6778334160.

The previous prime is 7138977919. The next prime is 7138977961. The reversal of 7138977941 is 1497798317.

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 7138977941 - 2⁶ = 7138977877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138977961) 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 7 ways as a sum of consecutive naturals, for example, 2170901 + ... + 2174186.

It is an arithmetic number, because the mean of its divisors is an integer number (938539008).

Almost surely, 2^7138977941 is an apocalyptic number.

It is an amenable number.

7138977941 is a deficient number, since it is larger than the sum of its proper divisors (369334123).

7138977941 is a wasteful number, since it uses less digits than its factorization.

7138977941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4345171.

The product of its digits is 2667168, while the sum is 56.

The square root of 7138977941 is about 84492.4726883999. The cubic root of 7138977941 is about 1925.5080856847.

The spelling of 7138977941 in words is "seven billion, one hundred thirty-eight million, nine hundred seventy-seven thousand, nine hundred forty-one".