74937873947 has 2 divisors, whose sum is σ = 74937873948. Its totient is φ = 74937873946.

The previous prime is 74937873931. The next prime is 74937873949.

74937873947 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 74937873947 - 2⁴ = 74937873931 is a prime.

It is a super-2 number, since 2×74937873947² (a number of 23 digits) contains 22 as substring.

Together with 74937873949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74937873949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37468936973 + 37468936974.

It is an arithmetic number, because the mean of its divisors is an integer number (37468936974).

Almost surely, 2^74937873947 is an apocalyptic number.

74937873947 is a deficient number, since it is larger than the sum of its proper divisors (1).

74937873947 is an equidigital number, since it uses as much as digits as its factorization.

74937873947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 224042112, while the sum is 68.

The spelling of 74937873947 in words is "seventy-four billion, nine hundred thirty-seven million, eight hundred seventy-three thousand, nine hundred forty-seven".