25780337193 has 16 divisors (see below), whose sum is σ = 37031898176. Its totient is φ = 15858832320.

The previous prime is 25780337183. The next prime is 25780337197. The reversal of 25780337193 is 39173308752.

It is not a de Polignac number, because 25780337193 - 2¹⁴ = 25780320809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25780337197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19063 + ... + 227868.

It is an arithmetic number, because the mean of its divisors is an integer number (2314493636).

Almost surely, 2^25780337193 is an apocalyptic number.

It is an amenable number.

25780337193 is a deficient number, since it is larger than the sum of its proper divisors (11251560983).

25780337193 is a wasteful number, since it uses less digits than its factorization.

25780337193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249624.

The product of its (nonzero) digits is 952560, while the sum is 48.

The spelling of 25780337193 in words is "twenty-five billion, seven hundred eighty million, three hundred thirty-seven thousand, one hundred ninety-three".