74957789047 has 2 divisors, whose sum is σ = 74957789048. Its totient is φ = 74957789046.

The previous prime is 74957789041. The next prime is 74957789077. The reversal of 74957789047 is 74098775947.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74957789047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74957789041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37478894523 + 37478894524.

It is an arithmetic number, because the mean of its divisors is an integer number (37478894524).

Almost surely, 2^74957789047 is an apocalyptic number.

74957789047 is a deficient number, since it is larger than the sum of its proper divisors (1).

74957789047 is an equidigital number, since it uses as much as digits as its factorization.

74957789047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124467840, while the sum is 67.

The spelling of 74957789047 in words is "seventy-four billion, nine hundred fifty-seven million, seven hundred eighty-nine thousand, forty-seven".