74913447051 has 20 divisors (see below), whose sum is σ = 112092177472. Its totient is φ = 49859988048.

The previous prime is 74913447047. The next prime is 74913447073. The reversal of 74913447051 is 15074431947.

It is a happy number.

74913447051 is a `hidden beast` number, since 7 + 49 + 134 + 470 + 5 + 1 = 666.

It is not a de Polignac number, because 74913447051 - 2² = 74913447047 is a prime.

It is a super-2 number, since 2×74913447051² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74913446988 and 74913447006.

It is not an unprimeable number, because it can be changed into a prime (74913447031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 712660 + ... + 810993.

Almost surely, 2^74913447051 is an apocalyptic number.

74913447051 is a deficient number, since it is larger than the sum of its proper divisors (37178730421).

74913447051 is a wasteful number, since it uses less digits than its factorization.

74913447051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524272 (or 1524263 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

Adding to 74913447051 its reverse (15074431947), we get a palindrome (89987878998).

The spelling of 74913447051 in words is "seventy-four billion, nine hundred thirteen million, four hundred forty-seven thousand, fifty-one".