74787288473 has 2 divisors, whose sum is σ = 74787288474. Its totient is φ = 74787288472.

The previous prime is 74787288431. The next prime is 74787288491. The reversal of 74787288473 is 37488278747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61151354944 + 13635933529 = 247288^2 + 116773^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74787288473 is a prime.

It is not a weakly prime, because it can be changed into another prime (74787281473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37393644236 + 37393644237.

It is an arithmetic number, because the mean of its divisors is an integer number (37393644237).

Almost surely, 2^74787288473 is an apocalyptic number.

It is an amenable number.

74787288473 is a deficient number, since it is larger than the sum of its proper divisors (1).

74787288473 is an equidigital number, since it uses as much as digits as its factorization.

74787288473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 118013952, while the sum is 65.

The spelling of 74787288473 in words is "seventy-four billion, seven hundred eighty-seven million, two hundred eighty-eight thousand, four hundred seventy-three".