126912921935 has 8 divisors (see below), whose sum is σ = 152363176656. Its totient is φ = 101485224000.

The previous prime is 126912921931. The next prime is 126912921959. The reversal of 126912921935 is 539129219621.

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

It is not a de Polignac number, because 126912921935 - 2² = 126912921931 is a prime.

It is a super-2 number, since 2×126912921935² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126912921931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5626814 + ... + 5649323.

It is an arithmetic number, because the mean of its divisors is an integer number (19045397082).

Almost surely, 2^126912921935 is an apocalyptic number.

126912921935 is a deficient number, since it is larger than the sum of its proper divisors (25450254721).

126912921935 is a wasteful number, since it uses less digits than its factorization.

126912921935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11278393.

The product of its digits is 524880, while the sum is 50.

The spelling of 126912921935 in words is "one hundred twenty-six billion, nine hundred twelve million, nine hundred twenty-one thousand, nine hundred thirty-five".