126799429698 has 90 divisors (see below), whose sum is σ = 288005332923. Its totient is φ = 41696920800.

The previous prime is 126799429661. The next prime is 126799429727. The reversal of 126799429698 is 896924997621.

126799429698 is a `hidden beast` number, since 1 + 26 + 7 + 99 + 429 + 6 + 98 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 91407661569 + 35391768129 = 302337^2 + 188127^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=251793.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 457759536 + ... + 457759812.

Almost surely, 2^126799429698 is an apocalyptic number.

126799429698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126799429698

126799429698 is an abundant number, since it is smaller than the sum of its proper divisors (161205903225).

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

126799429698 is an frugal number, since it uses more digits than its factorization.

126799429698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 383 counting only the distinct ones).

The product of its digits is 211631616, while the sum is 72.

Multiplying 126799429698 by its sum of digits (72), we get a square (9129558938256 = 3021516²).

The spelling of 126799429698 in words is "one hundred twenty-six billion, seven hundred ninety-nine million, four hundred twenty-nine thousand, six hundred ninety-eight".