126713356340 has 24 divisors (see below), whose sum is σ = 266768337192. Its totient is φ = 50557668480.

The previous prime is 126713356333. The next prime is 126713356351. The reversal of 126713356340 is 43653317621.

It can be written as a sum of positive squares in 4 ways, for example, as 39785089444 + 86928266896 = 199462^2 + 294836^2 .

It is a super-3 number, since 3×126713356340³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7971491 + ... + 7987370.

It is an arithmetic number, because the mean of its divisors is an integer number (11115347383).

Almost surely, 2^126713356340 is an apocalyptic number.

126713356340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126713356340 is an abundant number, since it is smaller than the sum of its proper divisors (140054980852).

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

126713356340 is a wasteful number, since it uses less digits than its factorization.

126713356340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15959267 (or 15959265 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 41.

The spelling of 126713356340 in words is "one hundred twenty-six billion, seven hundred thirteen million, three hundred fifty-six thousand, three hundred forty".