747097768666 has 8 divisors (see below), whose sum is σ = 1124692309620. Its totient is φ = 372200332128.

The previous prime is 747097768579. The next prime is 747097768679. The reversal of 747097768666 is 666867790747.

It can be written as a sum of positive squares in 2 ways, for example, as 720595556641 + 26502212025 = 848879^2 + 162795^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674275411 + ... + 674276518.

Almost surely, 2^747097768666 is an apocalyptic number.

747097768666 is a deficient number, since it is larger than the sum of its proper divisors (377594540954).

747097768666 is a wasteful number, since it uses less digits than its factorization.

747097768666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348552208.

The product of its (nonzero) digits is 896168448, while the sum is 73.

The spelling of 747097768666 in words is "seven hundred forty-seven billion, ninety-seven million, seven hundred sixty-eight thousand, six hundred sixty-six".