773728127331 has 16 divisors (see below), whose sum is σ = 1036432645248. Its totient is φ = 513422280000.

The previous prime is 773728127317. The next prime is 773728127351. The reversal of 773728127331 is 133721827377.

It is not a de Polignac number, because 773728127331 - 2¹¹ = 773728125283 is a prime.

It is a super-2 number, since 2×773728127331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (773728127351) 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, 2725656 + ... + 2996106.

It is an arithmetic number, because the mean of its divisors is an integer number (64777040328).

Almost surely, 2^773728127331 is an apocalyptic number.

773728127331 is a deficient number, since it is larger than the sum of its proper divisors (262704517917).

773728127331 is a wasteful number, since it uses less digits than its factorization.

773728127331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274882.

The product of its digits is 2074464, while the sum is 51.

The spelling of 773728127331 in words is "seven hundred seventy-three billion, seven hundred twenty-eight million, one hundred twenty-seven thousand, three hundred thirty-one".