6425394131 has 4 divisors (see below), whose sum is σ = 6919655232. Its totient is φ = 5931133032.

The previous prime is 6425394113. The next prime is 6425394161. The reversal of 6425394131 is 1314935246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6425394131 - 2¹⁸ = 6425131987 is a prime.

It is a super-2 number, since 2×6425394131² = 82571379477378490322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6425394161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247130531 + ... + 247130556.

It is an arithmetic number, because the mean of its divisors is an integer number (1729913808).

Almost surely, 2^6425394131 is an apocalyptic number.

6425394131 is a deficient number, since it is larger than the sum of its proper divisors (494261101).

6425394131 is a wasteful number, since it uses less digits than its factorization.

6425394131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494261100.

The product of its digits is 77760, while the sum is 38.

The square root of 6425394131 is about 80158.5561933347. The cubic root of 6425394131 is about 1859.0878993335.

The spelling of 6425394131 in words is "six billion, four hundred twenty-five million, three hundred ninety-four thousand, one hundred thirty-one".