425172497709 has 8 divisors (see below), whose sum is σ = 567754301152. Its totient is φ = 283019513040.

The previous prime is 425172497699. The next prime is 425172497749. The reversal of 425172497709 is 907794271524.

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

It is not a de Polignac number, because 425172497709 - 2²⁵ = 425138943277 is a prime.

It is a super-2 number, since 2×425172497709² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425172497749) 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, 107202379 + ... + 107206344.

It is an arithmetic number, because the mean of its divisors is an integer number (70969287644).

Almost surely, 2^425172497709 is an apocalyptic number.

It is an amenable number.

425172497709 is a deficient number, since it is larger than the sum of its proper divisors (142581803443).

425172497709 is a wasteful number, since it uses less digits than its factorization.

425172497709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214409387.

The product of its (nonzero) digits is 8890560, while the sum is 57.

The spelling of 425172497709 in words is "four hundred twenty-five billion, one hundred seventy-two million, four hundred ninety-seven thousand, seven hundred nine".