25787135073 has 8 divisors (see below), whose sum is σ = 39294682048. Its totient is φ = 14735505744.

The previous prime is 25787135021. The next prime is 25787135081. The reversal of 25787135073 is 37053178752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25787135073 - 2⁸ = 25787134817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25787135093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613979386 + ... + 613979427.

It is an arithmetic number, because the mean of its divisors is an integer number (4911835256).

Almost surely, 2^25787135073 is an apocalyptic number.

It is an amenable number.

25787135073 is a deficient number, since it is larger than the sum of its proper divisors (13507546975).

25787135073 is a wasteful number, since it uses less digits than its factorization.

25787135073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227958823.

The product of its (nonzero) digits is 1234800, while the sum is 48.

The spelling of 25787135073 in words is "twenty-five billion, seven hundred eighty-seven million, one hundred thirty-five thousand, seventy-three".