2405257052709 has 16 divisors (see below), whose sum is σ = 3669574805120. Its totient is φ = 1372774651200.

The previous prime is 2405257052689. The next prime is 2405257052729. The reversal of 2405257052709 is 9072507525042.

It is an interprime number because it is at equal distance from previous prime (2405257052689) and next prime (2405257052729).

It is not a de Polignac number, because 2405257052709 - 2⁷ = 2405257052581 is a prime.

It is a super-2 number, since 2×2405257052709² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405257052729) 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, 69063442 + ... + 69098259.

It is an arithmetic number, because the mean of its divisors is an integer number (229348425320).

Almost surely, 2^{2405257052709} is an apocalyptic number.

It is an amenable number.

2405257052709 is a deficient number, since it is larger than the sum of its proper divisors (1264317752411).

2405257052709 is a wasteful number, since it uses less digits than its factorization.

2405257052709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138162540.

The product of its (nonzero) digits is 1764000, while the sum is 48.

The spelling of 2405257052709 in words is "two trillion, four hundred five billion, two hundred fifty-seven million, fifty-two thousand, seven hundred nine".