126767434431 has 16 divisors (see below), whose sum is σ = 184394954880. Its totient is φ = 76826265120.

The previous prime is 126767434411. The next prime is 126767434483. The reversal of 126767434431 is 134434767621.

It is not a de Polignac number, because 126767434431 - 2¹¹ = 126767432383 is a prime.

It is a super-2 number, since 2×126767434431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126767434411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1901460 + ... + 1966998.

It is an arithmetic number, because the mean of its divisors is an integer number (11524684680).

Almost surely, 2^126767434431 is an apocalyptic number.

126767434431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

126767434431 is a deficient number, since it is larger than the sum of its proper divisors (57627520449).

126767434431 is a wasteful number, since it uses less digits than its factorization.

126767434431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124166.

The product of its digits is 2032128, while the sum is 48.

The spelling of 126767434431 in words is "one hundred twenty-six billion, seven hundred sixty-seven million, four hundred thirty-four thousand, four hundred thirty-one".