126823526390 has 16 divisors (see below), whose sum is σ = 249035288400. Its totient is φ = 46117645920.

The previous prime is 126823526387. The next prime is 126823526393. The reversal of 126823526390 is 93625328621.

It is an interprime number because it is at equal distance from previous prime (126823526387) and next prime (126823526393).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126823526393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576470465 + ... + 576470684.

It is an arithmetic number, because the mean of its divisors is an integer number (15564705525).

Almost surely, 2^126823526390 is an apocalyptic number.

126823526390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126823526390 is a deficient number, since it is larger than the sum of its proper divisors (122211762010).

126823526390 is a wasteful number, since it uses less digits than its factorization.

126823526390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152941167.

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 126823526390 in words is "one hundred twenty-six billion, eight hundred twenty-three million, five hundred twenty-six thousand, three hundred ninety".