126387779039 has 8 divisors (see below), whose sum is σ = 126956747520. Its totient is φ = 125818917976.

The previous prime is 126387778991. The next prime is 126387779041. The reversal of 126387779039 is 930977783621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126387779039 is a prime.

It is a super-2 number, since 2×126387779039² (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 (126387779059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3194432 + ... + 3233754.

It is an arithmetic number, because the mean of its divisors is an integer number (15869593440).

Almost surely, 2^126387779039 is an apocalyptic number.

126387779039 is a deficient number, since it is larger than the sum of its proper divisors (568968481).

126387779039 is a wasteful number, since it uses less digits than its factorization.

126387779039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53709.

The product of its (nonzero) digits is 24004512, while the sum is 62.

The spelling of 126387779039 in words is "one hundred twenty-six billion, three hundred eighty-seven million, seven hundred seventy-nine thousand, thirty-nine".