25340737069 has 2 divisors, whose sum is σ = 25340737070. Its totient is φ = 25340737068.

The previous prime is 25340737043. The next prime is 25340737073. The reversal of 25340737069 is 96073704352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24803100100 + 537636969 = 157490^2 + 23187^2 .

It is a cyclic number.

It is not a de Polignac number, because 25340737069 - 2²¹ = 25338639917 is a prime.

It is a super-2 number, since 2×25340737069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25340737039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12670368534 + 12670368535.

It is an arithmetic number, because the mean of its divisors is an integer number (12670368535).

Almost surely, 2^25340737069 is an apocalyptic number.

It is an amenable number.

25340737069 is a deficient number, since it is larger than the sum of its proper divisors (1).

25340737069 is an equidigital number, since it uses as much as digits as its factorization.

25340737069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 46.

The spelling of 25340737069 in words is "twenty-five billion, three hundred forty million, seven hundred thirty-seven thousand, sixty-nine".