126700007621 has 40 divisors (see below), whose sum is σ = 143822545920. Its totient is φ = 111553772000.

The previous prime is 126700007597. The next prime is 126700007627.

126700007621 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 126700007621 - 2¹⁸ = 126699745477 is a prime.

It is a super-2 number, since 2×126700007621² (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 (126700007627) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 69499916 + ... + 69501738.

It is an arithmetic number, because the mean of its divisors is an integer number (3595563648).

Almost surely, 2^126700007621 is an apocalyptic number.

126700007621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126700007621 is a deficient number, since it is larger than the sum of its proper divisors (17122538299).

126700007621 is an equidigital number, since it uses as much as digits as its factorization.

126700007621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

It can be divided in two parts, 12670000 and 7621, that added together give a palindrome (12677621).

The spelling of 126700007621 in words is "one hundred twenty-six billion, seven hundred million, seven thousand, six hundred twenty-one".