25743649452145 has 16 divisors (see below), whose sum is σ = 32262821551872. Its totient is φ = 19682807826880.

The previous prime is 25743649452119. The next prime is 25743649452181. The reversal of 25743649452145 is 54125494634752.

It is not a de Polignac number, because 25743649452145 - 2¹⁵ = 25743649419377 is a prime.

It is a super-2 number, since 2×25743649452145² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94638877 + ... + 94910506.

It is an arithmetic number, because the mean of its divisors is an integer number (2016426346992).

Almost surely, 2^{25743649452145} is an apocalyptic number.

It is an amenable number.

25743649452145 is a deficient number, since it is larger than the sum of its proper divisors (6519172099727).

25743649452145 is a wasteful number, since it uses less digits than its factorization.

25743649452145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189550592.

The product of its digits is 145152000, while the sum is 61.

The spelling of 25743649452145 in words is "twenty-five trillion, seven hundred forty-three billion, six hundred forty-nine million, four hundred fifty-two thousand, one hundred forty-five".