2125887835965 has 32 divisors (see below), whose sum is σ = 3601649183616. Its totient is φ = 1067069337600.

The previous prime is 2125887835943. The next prime is 2125887835969. The reversal of 2125887835965 is 5695387885212.

It is not a de Polignac number, because 2125887835965 - 2⁷ = 2125887835837 is a prime.

It is a super-2 number, since 2×2125887835965² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2125887835965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125887835969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6728790 + ... + 7037640.

It is an arithmetic number, because the mean of its divisors is an integer number (112551536988).

Almost surely, 2^{2125887835965} is an apocalyptic number.

It is an amenable number.

2125887835965 is a deficient number, since it is larger than the sum of its proper divisors (1475761347651).

2125887835965 is a wasteful number, since it uses less digits than its factorization.

2125887835965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335869.

The product of its digits is 290304000, while the sum is 69.

The spelling of 2125887835965 in words is "two trillion, one hundred twenty-five billion, eight hundred eighty-seven million, eight hundred thirty-five thousand, nine hundred sixty-five".