746739667881 has 27 divisors (see below), whose sum is σ = 1094299552983. Its totient is φ = 490693825440.

The previous prime is 746739667837. The next prime is 746739667897. The reversal of 746739667881 is 188766937647.

It is a happy number.

The square root of 746739667881 is 864141.

It is a perfect power (a square), and thus also a powerful number.

746739667881 is a `hidden beast` number, since 7 + 467 + 3 + 96 + 6 + 78 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 382870125225 + 363869542656 = 618765^2 + 603216^2 .

It is not a de Polignac number, because 746739667881 - 2¹⁹ = 746739143593 is a prime.

It is a super-2 number, since 2×746739667881² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (746739667381) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 184060005 + ... + 184064061.

Almost surely, 2^746739667881 is an apocalyptic number.

746739667881 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

746739667881 is the 864141-st square number.

746739667881 is the 432071-st centered octagonal number.

It is an amenable number.

746739667881 is a deficient number, since it is larger than the sum of its proper divisors (347559885102).

746739667881 is an frugal number, since it uses more digits than its factorization.

746739667881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8262 (or 4131 counting only the distinct ones).

The product of its digits is 512096256, while the sum is 72.

The spelling of 746739667881 in words is "seven hundred forty-six billion, seven hundred thirty-nine million, six hundred sixty-seven thousand, eight hundred eighty-one".