31425028417 has 8 divisors (see below), whose sum is σ = 31720213800. Its totient is φ = 31129968384.

The previous prime is 31425028381. The next prime is 31425028447. The reversal of 31425028417 is 71482052413.

It can be written as a sum of positive squares in 4 ways, for example, as 2399432256 + 29025596161 = 48984^2 + 170369^2 .

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 31425028417 - 2¹⁹ = 31424504129 is a prime.

It is a super-2 number, since 2×31425028417² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31425028447) 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, 517203 + ... + 574759.

It is an arithmetic number, because the mean of its divisors is an integer number (3965026725).

Almost surely, 2^31425028417 is an apocalyptic number.

It is an amenable number.

31425028417 is a deficient number, since it is larger than the sum of its proper divisors (295185383).

31425028417 is a wasteful number, since it uses less digits than its factorization.

31425028417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62675.

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 31425028417 in words is "thirty-one billion, four hundred twenty-five million, twenty-eight thousand, four hundred seventeen".