126762671585449 has 9 divisors (see below), whose sum is σ = 126845422125597. Its totient is φ = 126679975016364.

The previous prime is 126762671585351. The next prime is 126762671585507. The reversal of 126762671585449 is 944585176267621.

The square root of 126762671585449 is 11258893.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 126762671585449 - 2³³ = 126754081650857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126762671585149) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 24533125264 + ... + 24533130430.

It is an arithmetic number, because the mean of its divisors is an integer number (14093935791733).

Almost surely, 2^{126762671585449} is an apocalyptic number.

126762671585449 is the 11258893-rd square number.

126762671585449 is the 5629447-th centered octagonal number.

It is an amenable number.

126762671585449 is a deficient number, since it is larger than the sum of its proper divisors (82750540148).

126762671585449 is an frugal number, since it uses more digits than its factorization.

126762671585449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14692 (or 7346 counting only the distinct ones).

The product of its digits is 1219276800, while the sum is 73.

The spelling of 126762671585449 in words is "one hundred twenty-six trillion, seven hundred sixty-two billion, six hundred seventy-one million, five hundred eighty-five thousand, four hundred forty-nine".