7425831377 has 2 divisors, whose sum is σ = 7425831378. Its totient is φ = 7425831376.

The previous prime is 7425831331. The next prime is 7425831407. The reversal of 7425831377 is 7731385247.

7425831377 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7362326416 + 63504961 = 85804^2 + 7969^2 .

It is a cyclic number.

It is not a de Polignac number, because 7425831377 - 2¹⁴ = 7425814993 is a prime.

It is a super-2 number, since 2×7425831377² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7425831307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3712915688 + 3712915689.

It is an arithmetic number, because the mean of its divisors is an integer number (3712915689).

Almost surely, 2^7425831377 is an apocalyptic number.

It is an amenable number.

7425831377 is a deficient number, since it is larger than the sum of its proper divisors (1).

7425831377 is an equidigital number, since it uses as much as digits as its factorization.

7425831377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987840, while the sum is 47.

The square root of 7425831377 is about 86173.2637016842. The cubic root of 7425831377 is about 1950.9599811499.

The spelling of 7425831377 in words is "seven billion, four hundred twenty-five million, eight hundred thirty-one thousand, three hundred seventy-seven".