74787955978748 has 12 divisors (see below), whose sum is σ = 132037143520800. Its totient is φ = 37063057829952.

The previous prime is 74787955978727. The next prime is 74787955978751. The reversal of 74787955978748 is 84787955978747.

It is a congruent number.

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, 82730039348 + ... + 82730040251.

It is an arithmetic number, because the mean of its divisors is an integer number (11003095293400).

Almost surely, 2^{74787955978748} is an apocalyptic number.

It is an amenable number.

74787955978748 is a deficient number, since it is larger than the sum of its proper divisors (57249187542052).

74787955978748 is a wasteful number, since it uses less digits than its factorization.

74787955978748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165460079716 (or 165460079714 counting only the distinct ones).

The product of its digits is 278807961600, while the sum is 95.

Subtracting 74787955978748 from its reverse (84787955978747), we obtain a palindrome (9999999999999).

The spelling of 74787955978748 in words is "seventy-four trillion, seven hundred eighty-seven billion, nine hundred fifty-five million, nine hundred seventy-eight thousand, seven hundred forty-eight".