74291906506 has 8 divisors (see below), whose sum is σ = 111444236064. Its totient is φ = 37143827820.

The previous prime is 74291906497. The next prime is 74291906537. The reversal of 74291906506 is 60560919247.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 74291906506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018660 + ... + 1089151.

It is an arithmetic number, because the mean of its divisors is an integer number (13930529508).

Almost surely, 2^74291906506 is an apocalyptic number.

74291906506 is a deficient number, since it is larger than the sum of its proper divisors (37152329558).

74291906506 is a wasteful number, since it uses less digits than its factorization.

74291906506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125436.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 74291906506 in words is "seventy-four billion, two hundred ninety-one million, nine hundred six thousand, five hundred six".