126985204635 has 8 divisors (see below), whose sum is σ = 203176327440. Its totient is φ = 67725442464.

The previous prime is 126985204607. The next prime is 126985204651. The reversal of 126985204635 is 536402589621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126985204635 - 2⁹ = 126985204123 is a prime.

It is a super-2 number, since 2×126985204635² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4232840140 + ... + 4232840169.

It is an arithmetic number, because the mean of its divisors is an integer number (25397040930).

Almost surely, 2^126985204635 is an apocalyptic number.

126985204635 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126985204635 is a deficient number, since it is larger than the sum of its proper divisors (76191122805).

126985204635 is an equidigital number, since it uses as much as digits as its factorization.

126985204635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8465680317.

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 126985204635 in words is "one hundred twenty-six billion, nine hundred eighty-five million, two hundred four thousand, six hundred thirty-five".