747279711297 has 18 divisors (see below), whose sum is σ = 1255633257138. Its totient is φ = 427016977632.

The previous prime is 747279711257. The next prime is 747279711301. The reversal of 747279711297 is 792117972747.

747279711297 is a `hidden beast` number, since 7 + 4 + 7 + 279 + 71 + 1 + 297 = 666.

It can be written as a sum of positive squares in only one way, i.e., 671414721201 + 75864990096 = 819399^2 + 275436^2 .

It is not a de Polignac number, because 747279711297 - 2¹¹ = 747279709249 is a prime.

It is a super-2 number, since 2×747279711297² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (747279711257) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 847255468 + ... + 847256349.

Almost surely, 2^747279711297 is an apocalyptic number.

It is an amenable number.

747279711297 is a deficient number, since it is larger than the sum of its proper divisors (508353545841).

747279711297 is a wasteful number, since it uses less digits than its factorization.

747279711297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694511837 (or 1694511827 counting only the distinct ones).

The product of its digits is 21781872, while the sum is 63.

The spelling of 747279711297 in words is "seven hundred forty-seven billion, two hundred seventy-nine million, seven hundred eleven thousand, two hundred ninety-seven".