126701723439 has 12 divisors (see below), whose sum is σ = 188917265472. Its totient is φ = 81743047200.

The previous prime is 126701723437. The next prime is 126701723443. The reversal of 126701723439 is 934327107621.

126701723439 is a `hidden beast` number, since 126 + 70 + 1 + 7 + 23 + 439 = 666.

It is not a de Polignac number, because 126701723439 - 2¹ = 126701723437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126701723394 and 126701723403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126701723437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227063742 + ... + 227064299.

It is an arithmetic number, because the mean of its divisors is an integer number (15743105456).

Almost surely, 2^126701723439 is an apocalyptic number.

126701723439 is a deficient number, since it is larger than the sum of its proper divisors (62215542033).

126701723439 is a wasteful number, since it uses less digits than its factorization.

126701723439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454128078 (or 454128075 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 126701723439 in words is "one hundred twenty-six billion, seven hundred one million, seven hundred twenty-three thousand, four hundred thirty-nine".