126740047621 has 8 divisors (see below), whose sum is σ = 138428661600. Its totient is φ = 115079232240.

The previous prime is 126740047607. The next prime is 126740047699.

126740047621 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 126740047621 - 2²⁷ = 126605829893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126740047321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6940111 + ... + 6958348.

It is an arithmetic number, because the mean of its divisors is an integer number (17303582700).

Almost surely, 2^126740047621 is an apocalyptic number.

126740047621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126740047621 is a deficient number, since it is larger than the sum of its proper divisors (11688613979).

126740047621 is a wasteful number, since it uses less digits than its factorization.

126740047621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13899299.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 126740047621 in words is "one hundred twenty-six billion, seven hundred forty million, forty-seven thousand, six hundred twenty-one".