126472021734 has 32 divisors (see below), whose sum is σ = 256038983424. Its totient is φ = 41641705760.

The previous prime is 126472021699. The next prime is 126472021763. The reversal of 126472021734 is 437120274621.

It is a junction number, because it is equal to n+sod(n) for n = 126472021692 and 126472021701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3077647 + ... + 3118469.

It is an arithmetic number, because the mean of its divisors is an integer number (8001218232).

Almost surely, 2^126472021734 is an apocalyptic number.

126472021734 is an abundant number, since it is smaller than the sum of its proper divisors (129566961690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126472021734 is a wasteful number, since it uses less digits than its factorization.

126472021734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47132.

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 126472021734 in words is "one hundred twenty-six billion, four hundred seventy-two million, twenty-one thousand, seven hundred thirty-four".