731222631077742 has 32 divisors (see below), whose sum is σ = 1634331892217760. Its totient is φ = 242331970219200.

The previous prime is 731222631077683. The next prime is 731222631077759. The reversal of 731222631077742 is 247770136222137.

731222631077742 is a `hidden beast` number, since 7 + 31 + 2 + 226 + 310 + 7 + 7 + 74 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39136290759 + ... + 39136309442.

It is an arithmetic number, because the mean of its divisors is an integer number (51072871631805).

Almost surely, 2^{731222631077742} is an apocalyptic number.

731222631077742 is an abundant number, since it is smaller than the sum of its proper divisors (903109261140018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

731222631077742 is a wasteful number, since it uses less digits than its factorization.

731222631077742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78272600385 (or 78272600379 counting only the distinct ones).

The product of its (nonzero) digits is 8297856, while the sum is 54.

Adding to 731222631077742 its reverse (247770136222137), we get a palindrome (978992767299879).

The spelling of 731222631077742 in words is "seven hundred thirty-one trillion, two hundred twenty-two billion, six hundred thirty-one million, seventy-seven thousand, seven hundred forty-two".