7477380139 has 2 divisors, whose sum is σ = 7477380140. Its totient is φ = 7477380138.

The previous prime is 7477380107. The next prime is 7477380149. The reversal of 7477380139 is 9310837747.

It is a strong prime.

It is an emirp because it is prime and its reverse (9310837747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7477380139 - 2⁵ = 7477380107 is a prime.

It is a super-2 number, since 2×7477380139² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7477380092 and 7477380101.

It is not a weakly prime, because it can be changed into another prime (7477380149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3738690069 + 3738690070.

It is an arithmetic number, because the mean of its divisors is an integer number (3738690070).

Almost surely, 2^7477380139 is an apocalyptic number.

7477380139 is a deficient number, since it is larger than the sum of its proper divisors (1).

7477380139 is an equidigital number, since it uses as much as digits as its factorization.

7477380139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 889056, while the sum is 49.

The square root of 7477380139 is about 86471.8459326502. The cubic root of 7477380139 is about 1955.4639775434.

The spelling of 7477380139 in words is "seven billion, four hundred seventy-seven million, three hundred eighty thousand, one hundred thirty-nine".