76257742730727 has 16 divisors (see below), whose sum is σ = 102453696449280. Its totient is φ = 50450146219200.

The previous prime is 76257742730683. The next prime is 76257742730789. The reversal of 76257742730727 is 72703724775267.

It is a happy number.

It is not a de Polignac number, because 76257742730727 - 2¹¹ = 76257742728679 is a prime.

It is a super-2 number, since 2×76257742730727² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76257742730627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96437899 + ... + 97225427.

It is an arithmetic number, because the mean of its divisors is an integer number (6403356028080).

Almost surely, 2^{76257742730727} is an apocalyptic number.

76257742730727 is a deficient number, since it is larger than the sum of its proper divisors (26195953718553).

76257742730727 is a wasteful number, since it uses less digits than its factorization.

76257742730727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034054.

The product of its (nonzero) digits is 338829120, while the sum is 66.

The spelling of 76257742730727 in words is "seventy-six trillion, two hundred fifty-seven billion, seven hundred forty-two million, seven hundred thirty thousand, seven hundred twenty-seven".