425798251690 has 32 divisors (see below), whose sum is σ = 894564601344. Its totient is φ = 142881843840.

The previous prime is 425798251687. The next prime is 425798251717. The reversal of 425798251690 is 96152897524.

It is a happy number.

It is a super-2 number, since 2×425798251690² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64707691 + ... + 64714270.

It is an arithmetic number, because the mean of its divisors is an integer number (27955143792).

Almost surely, 2^425798251690 is an apocalyptic number.

425798251690 is an abundant number, since it is smaller than the sum of its proper divisors (468766349654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425798251690 is a wasteful number, since it uses less digits than its factorization.

425798251690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129422022.

The product of its (nonzero) digits is 10886400, while the sum is 58.

The spelling of 425798251690 in words is "four hundred twenty-five billion, seven hundred ninety-eight million, two hundred fifty-one thousand, six hundred ninety".