74040710647 has 2 divisors, whose sum is σ = 74040710648. Its totient is φ = 74040710646.

The previous prime is 74040710621. The next prime is 74040710717. The reversal of 74040710647 is 74601704047.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74040710647 is a prime.

It is a super-2 number, since 2×74040710647² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74040713647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37020355323 + 37020355324.

It is an arithmetic number, because the mean of its divisors is an integer number (37020355324).

Almost surely, 2^74040710647 is an apocalyptic number.

74040710647 is a deficient number, since it is larger than the sum of its proper divisors (1).

74040710647 is an equidigital number, since it uses as much as digits as its factorization.

74040710647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131712, while the sum is 40.

The spelling of 74040710647 in words is "seventy-four billion, forty million, seven hundred ten thousand, six hundred forty-seven".