25878043071 has 24 divisors (see below), whose sum is σ = 37520246400. Its totient is φ = 17187112656.

The previous prime is 25878043057. The next prime is 25878043117. The reversal of 25878043071 is 17034087852.

It is not a de Polignac number, because 25878043071 - 2¹³ = 25878034879 is a prime.

It is a super-2 number, since 2×25878043071² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25878043001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4366116 + ... + 4372038.

It is an arithmetic number, because the mean of its divisors is an integer number (1563343600).

Almost surely, 2^25878043071 is an apocalyptic number.

25878043071 is a deficient number, since it is larger than the sum of its proper divisors (11642203329).

25878043071 is a wasteful number, since it uses less digits than its factorization.

25878043071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7675 (or 7672 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 25878043071 in words is "twenty-five billion, eight hundred seventy-eight million, forty-three thousand, seventy-one".