1025461024399 has 4 divisors (see below), whose sum is σ = 1171955456464. Its totient is φ = 878966592336.

The previous prime is 1025461024363. The next prime is 1025461024403. The reversal of 1025461024399 is 9934201645201.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-1025461024399 is a prime.

It is a super-2 number, since 2×1025461024399² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025461024199) 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, 73247216022 + ... + 73247216035.

It is an arithmetic number, because the mean of its divisors is an integer number (292988864116).

Almost surely, 2^{1025461024399} is an apocalyptic number.

1025461024399 is a deficient number, since it is larger than the sum of its proper divisors (146494432065).

1025461024399 is an equidigital number, since it uses as much as digits as its factorization.

1025461024399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146494432064.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 1025461024399 in words is "one trillion, twenty-five billion, four hundred sixty-one million, twenty-four thousand, three hundred ninety-nine".