6265115781 has 16 divisors (see below), whose sum is σ = 8558620224. Its totient is φ = 4074424704.

The previous prime is 6265115671. The next prime is 6265115789. The reversal of 6265115781 is 1875115626.

It is not a de Polignac number, because 6265115781 - 2¹⁴ = 6265099397 is a prime.

It is a super-2 number, since 2×6265115781² = 78503351498670479922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6265115789) 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, 72345 + ... + 133281.

It is an arithmetic number, because the mean of its divisors is an integer number (534913764).

Almost surely, 2^6265115781 is an apocalyptic number.

It is an amenable number.

6265115781 is a deficient number, since it is larger than the sum of its proper divisors (2293504443).

6265115781 is a wasteful number, since it uses less digits than its factorization.

6265115781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61780.

The product of its digits is 100800, while the sum is 42.

The square root of 6265115781 is about 79152.4843640425. The cubic root of 6265115781 is about 1843.4995407889.

The spelling of 6265115781 in words is "six billion, two hundred sixty-five million, one hundred fifteen thousand, seven hundred eighty-one".