126400913407 has 4 divisors (see below), whose sum is σ = 133053593080. Its totient is φ = 119748233736.

The previous prime is 126400913383. The next prime is 126400913437. The reversal of 126400913407 is 704319004621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126400913407 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 (126400913437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3326339808 + ... + 3326339845.

It is an arithmetic number, because the mean of its divisors is an integer number (33263398270).

Almost surely, 2^126400913407 is an apocalyptic number.

126400913407 is a deficient number, since it is larger than the sum of its proper divisors (6652679673).

126400913407 is an equidigital number, since it uses as much as digits as its factorization.

126400913407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652679672.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 126400913407 in words is "one hundred twenty-six billion, four hundred million, nine hundred thirteen thousand, four hundred seven".