74361643136 has 32 divisors (see below), whose sum is σ = 161609824080. Its totient is φ = 33800746240.

The previous prime is 74361643121. The next prime is 74361643199. The reversal of 74361643136 is 63134616347.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 26405426 + ... + 26408241.

Almost surely, 2^74361643136 is an apocalyptic number.

It is an amenable number.

74361643136 is an abundant number, since it is smaller than the sum of its proper divisors (87248180944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74361643136 is a wasteful number, since it uses less digits than its factorization.

74361643136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52813692 (or 52813680 counting only the distinct ones).

The product of its digits is 653184, while the sum is 44.

The spelling of 74361643136 in words is "seventy-four billion, three hundred sixty-one million, six hundred forty-three thousand, one hundred thirty-six".