25081640981419 has 16 divisors (see below), whose sum is σ = 29007791502336. Its totient is φ = 21469582504800.

The previous prime is 25081640981387. The next prime is 25081640981429. The reversal of 25081640981419 is 91418904618052.

It is a cyclic number.

It is not a de Polignac number, because 25081640981419 - 2⁵ = 25081640981387 is a prime.

It is a super-2 number, since 2×25081640981419² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25081640981429) 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, 993949537 + ... + 993974770.

It is an arithmetic number, because the mean of its divisors is an integer number (1812986968896).

Almost surely, 2^{25081640981419} is an apocalyptic number.

25081640981419 is a deficient number, since it is larger than the sum of its proper divisors (3926150520917).

25081640981419 is a wasteful number, since it uses less digits than its factorization.

25081640981419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987924386.

The product of its (nonzero) digits is 4976640, while the sum is 58.

The spelling of 25081640981419 in words is "twenty-five trillion, eighty-one billion, six hundred forty million, nine hundred eighty-one thousand, four hundred nineteen".