126951943383 has 28 divisors (see below), whose sum is σ = 194983347888. Its totient is φ = 82570350240.

The previous prime is 126951943379. The next prime is 126951943423. The reversal of 126951943383 is 383349159621.

126951943383 is a `hidden beast` number, since 1 + 2 + 6 + 9 + 519 + 43 + 3 + 83 = 666.

It is not a de Polignac number, because 126951943383 - 2² = 126951943379 is a prime.

It is a super-4 number, since 4×126951943383⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126951943483) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2093835 + ... + 2153612.

It is an arithmetic number, because the mean of its divisors is an integer number (6963690996).

Almost surely, 2^126951943383 is an apocalyptic number.

126951943383 is a deficient number, since it is larger than the sum of its proper divisors (68031404505).

126951943383 is an frugal number, since it uses more digits than its factorization.

126951943383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247506 (or 4247491 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The spelling of 126951943383 in words is "one hundred twenty-six billion, nine hundred fifty-one million, nine hundred forty-three thousand, three hundred eighty-three".