1126821657430 has 64 divisors (see below), whose sum is σ = 2380934155392. Its totient is φ = 375857556480.

The previous prime is 1126821657347. The next prime is 1126821657433. The reversal of 1126821657430 is 347561286211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1126821657433) 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, 34526520 + ... + 34559140.

It is an arithmetic number, because the mean of its divisors is an integer number (37202096178).

Almost surely, 2^{1126821657430} is an apocalyptic number.

1126821657430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1126821657430 is an abundant number, since it is smaller than the sum of its proper divisors (1254112497962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1126821657430 is a wasteful number, since it uses less digits than its factorization.

1126821657430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46009.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 1126821657430 in words is "one trillion, one hundred twenty-six billion, eight hundred twenty-one million, six hundred fifty-seven thousand, four hundred thirty".