126762671585450 has 24 divisors (see below), whose sum is σ = 236446497139788. Its totient is φ = 50561428206080.

The previous prime is 126762671585351. The next prime is 126762671585507. The reversal of 126762671585450 is 54585176267621.

It is a Cunningham number, because it is equal to 11258893²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 51499984969801 + 75262686615649 = 7176349^2 + 8675407^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3590992877 + ... + 3591028176.

Almost surely, 2^{126762671585450} is an apocalyptic number.

126762671585450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126762671585450 is a deficient number, since it is larger than the sum of its proper divisors (109683825554338).

126762671585450 is a wasteful number, since it uses less digits than its factorization.

126762671585450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7182021418 (or 7182021413 counting only the distinct ones).

The product of its (nonzero) digits is 169344000, while the sum is 65.

The spelling of 126762671585450 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 fifty".