1025427967189 has 4 divisors (see below), whose sum is σ = 1025464251456. Its totient is φ = 1025391682924.

The previous prime is 1025427967177. The next prime is 1025427967219. The reversal of 1025427967189 is 9817697245201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1025427967189 - 2³¹ = 1023280483541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025427967139) 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, 18099709 + ... + 18156274.

It is an arithmetic number, because the mean of its divisors is an integer number (256366062864).

Almost surely, 2^{1025427967189} is an apocalyptic number.

It is an amenable number.

1025427967189 is a deficient number, since it is larger than the sum of its proper divisors (36284267).

1025427967189 is an equidigital number, since it uses as much as digits as its factorization.

1025427967189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36284266.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 1025427967189 in words is "one trillion, twenty-five billion, four hundred twenty-seven million, nine hundred sixty-seven thousand, one hundred eighty-nine".