6861115437 has 32 divisors (see below), whose sum is σ = 10135977984. Its totient is φ = 4093689600.

The previous prime is 6861115427. The next prime is 6861115451. The reversal of 6861115437 is 7345111686.

It is not a de Polignac number, because 6861115437 - 2⁷ = 6861115309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6861115427) 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, 542773 + ... + 555269.

It is an arithmetic number, because the mean of its divisors is an integer number (316749312).

Almost surely, 2^6861115437 is an apocalyptic number.

It is an amenable number.

6861115437 is a deficient number, since it is larger than the sum of its proper divisors (3274862547).

6861115437 is a wasteful number, since it uses less digits than its factorization.

6861115437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12769.

The product of its digits is 120960, while the sum is 42.

The square root of 6861115437 is about 82831.8503777382. The cubic root of 6861115437 is about 1900.1953111318.

It can be divided in two parts, 68611 and 15437, that added together give a palindrome (84048).

The spelling of 6861115437 in words is "six billion, eight hundred sixty-one million, one hundred fifteen thousand, four hundred thirty-seven".