247404774741 has 16 divisors (see below), whose sum is σ = 341355288960. Its totient is φ = 159198966080.

The previous prime is 247404774737. The next prime is 247404774763. The reversal of 247404774741 is 147477404742.

It is not a de Polignac number, because 247404774741 - 2² = 247404774737 is a prime.

It is a super-3 number, since 3×247404774741³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247404774781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167970 + ... + 723203.

It is an arithmetic number, because the mean of its divisors is an integer number (21334705560).

Almost surely, 2^247404774741 is an apocalyptic number.

It is an amenable number.

247404774741 is a deficient number, since it is larger than the sum of its proper divisors (93950514219).

247404774741 is a wasteful number, since it uses less digits than its factorization.

247404774741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894396.

The product of its (nonzero) digits is 4917248, while the sum is 51.

The spelling of 247404774741 in words is "two hundred forty-seven billion, four hundred four million, seven hundred seventy-four thousand, seven hundred forty-one".