425191377122 has 18 divisors (see below), whose sum is σ = 666755844363. Its totient is φ = 203342253972.

The previous prime is 425191377101. The next prime is 425191377133. The reversal of 425191377122 is 221773191524.

It can be written as a sum of positive squares in only one way, i.e., 212595688561 + 212595688561 = 461081^2 + 461081^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=461081.

It is a super-3 number, since 3×425191377122³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21199703 + ... + 21219749.

Almost surely, 2^425191377122 is an apocalyptic number.

425191377122 is a deficient number, since it is larger than the sum of its proper divisors (241564467241).

425191377122 is an frugal number, since it uses more digits than its factorization.

425191377122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40142 (or 20072 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The spelling of 425191377122 in words is "four hundred twenty-five billion, one hundred ninety-one million, three hundred seventy-seven thousand, one hundred twenty-two".