74948920834578 has 32 divisors (see below), whose sum is σ = 171443294094336. Its totient is φ = 21397543000848.

The previous prime is 74948920834573. The next prime is 74948920834589. The reversal of 74948920834578 is 87543802984947.

It is not an unprimeable number, because it can be changed into a prime (74948920834573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684710476 + ... + 684819927.

It is an arithmetic number, because the mean of its divisors is an integer number (5357602940448).

Almost surely, 2^{74948920834578} is an apocalyptic number.

74948920834578 is an abundant number, since it is smaller than the sum of its proper divisors (96494373259758).

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

74948920834578 is a wasteful number, since it uses less digits than its factorization.

74948920834578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369531718.

The product of its (nonzero) digits is 3901685760, while the sum is 78.

The spelling of 74948920834578 in words is "seventy-four trillion, nine hundred forty-eight billion, nine hundred twenty million, eight hundred thirty-four thousand, five hundred seventy-eight".