747221377671 has 6 divisors (see below), whose sum is σ = 1079319767760. Its totient is φ = 498147585108.

The previous prime is 747221377589. The next prime is 747221377697. The reversal of 747221377671 is 176773122747.

747221377671 is a `hidden beast` number, since 7 + 47 + 221 + 377 + 6 + 7 + 1 = 666.

It is not a de Polignac number, because 747221377671 - 2⁹ = 747221377159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747221377171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41512298751 + ... + 41512298768.

It is an arithmetic number, because the mean of its divisors is an integer number (179886627960).

Almost surely, 2^747221377671 is an apocalyptic number.

747221377671 is a deficient number, since it is larger than the sum of its proper divisors (332098390089).

747221377671 is a wasteful number, since it uses less digits than its factorization.

747221377671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83024597525 (or 83024597522 counting only the distinct ones).

The product of its digits is 4840416, while the sum is 54.

The spelling of 747221377671 in words is "seven hundred forty-seven billion, two hundred twenty-one million, three hundred seventy-seven thousand, six hundred seventy-one".