73438606642 has 8 divisors (see below), whose sum is σ = 110159174016. Its totient is φ = 36718881972.

The previous prime is 73438606627. The next prime is 73438606679. The reversal of 73438606642 is 24660683437.

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

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, 97143 + ... + 395365.

It is an arithmetic number, because the mean of its divisors is an integer number (13769896752).

Almost surely, 2^73438606642 is an apocalyptic number.

73438606642 is a deficient number, since it is larger than the sum of its proper divisors (36720567374).

73438606642 is a wasteful number, since it uses less digits than its factorization.

73438606642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421352.

The product of its (nonzero) digits is 3483648, while the sum is 49.

The spelling of 73438606642 in words is "seventy-three billion, four hundred thirty-eight million, six hundred six thousand, six hundred forty-two".