74486604547 has 2 divisors, whose sum is σ = 74486604548. Its totient is φ = 74486604546.

The previous prime is 74486604463. The next prime is 74486604551. The reversal of 74486604547 is 74540668447.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74486604547 - 2²³ = 74478215939 is a prime.

It is a super-2 number, since 2×74486604547² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74486601547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37243302273 + 37243302274.

It is an arithmetic number, because the mean of its divisors is an integer number (37243302274).

Almost surely, 2^74486604547 is an apocalyptic number.

74486604547 is a deficient number, since it is larger than the sum of its proper divisors (1).

74486604547 is an equidigital number, since it uses as much as digits as its factorization.

74486604547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18063360, while the sum is 55.

The spelling of 74486604547 in words is "seventy-four billion, four hundred eighty-six million, six hundred four thousand, five hundred forty-seven".