74278159630 has 32 divisors (see below), whose sum is σ = 139545903168. Its totient is φ = 28439673600.

The previous prime is 74278159609. The next prime is 74278159691. The reversal of 74278159630 is 3695187247.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1687386 + ... + 1730845.

It is an arithmetic number, because the mean of its divisors is an integer number (4360809474).

It is a 1-persistent number, because it is pandigital, but 2⋅74278159630 = 148556319260 is not.

Almost surely, 2^74278159630 is an apocalyptic number.

74278159630 is a deficient number, since it is larger than the sum of its proper divisors (65267743538).

74278159630 is a wasteful number, since it uses less digits than its factorization.

74278159630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3418332.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 74278159630 in words is "seventy-four billion, two hundred seventy-eight million, one hundred fifty-nine thousand, six hundred thirty".