1025863769 has 4 divisors (see below), whose sum is σ = 1172415744. Its totient is φ = 879311796.

The previous prime is 1025863753. The next prime is 1025863781. The reversal of 1025863769 is 9673685201.

1025863769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1025863769 - 2⁴ = 1025863753 is a prime.

It is a super-2 number, since 2×1025863769² = 2104792945093770722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025860769) 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, 73275977 + ... + 73275990.

It is an arithmetic number, because the mean of its divisors is an integer number (293103936).

Almost surely, 2^1025863769 is an apocalyptic number.

It is an amenable number.

1025863769 is a deficient number, since it is larger than the sum of its proper divisors (146551975).

1025863769 is an equidigital number, since it uses as much as digits as its factorization.

1025863769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146551974.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 1025863769 is about 32029.1081518047. The cubic root of 1025863769 is about 1008.5479801738.

The spelling of 1025863769 in words is "one billion, twenty-five million, eight hundred sixty-three thousand, seven hundred sixty-nine".