74894649848 has 8 divisors (see below), whose sum is σ = 140427468480. Its totient is φ = 37447324920.

The previous prime is 74894649827. The next prime is 74894649859. The reversal of 74894649848 is 84894649847.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4680915608 + ... + 4680915623.

It is an arithmetic number, because the mean of its divisors is an integer number (17553433560).

Almost surely, 2^74894649848 is an apocalyptic number.

It is an amenable number.

74894649848 is a deficient number, since it is larger than the sum of its proper divisors (65532818632).

74894649848 is a wasteful number, since it uses less digits than its factorization.

74894649848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361831237 (or 9361831233 counting only the distinct ones).

The product of its digits is 445906944, while the sum is 71.

Subtracting 74894649848 from its reverse (84894649847), we obtain a palindrome (9999999999).

The spelling of 74894649848 in words is "seventy-four billion, eight hundred ninety-four million, six hundred forty-nine thousand, eight hundred forty-eight".