74148147378 has 48 divisors (see below), whose sum is σ = 162290521536. Its totient is φ = 24464553120.

The previous prime is 74148147347. The next prime is 74148147407. The reversal of 74148147378 is 87374184147.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4509993 + ... + 4526403.

It is an arithmetic number, because the mean of its divisors is an integer number (3381052532).

Almost surely, 2^74148147378 is an apocalyptic number.

74148147378 is an abundant number, since it is smaller than the sum of its proper divisors (88142374158).

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

74148147378 is a wasteful number, since it uses less digits than its factorization.

74148147378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18959 (or 18956 counting only the distinct ones).

The product of its digits is 4214784, while the sum is 54.

The spelling of 74148147378 in words is "seventy-four billion, one hundred forty-eight million, one hundred forty-seven thousand, three hundred seventy-eight".