74843877755 has 4 divisors (see below), whose sum is σ = 89812653312. Its totient is φ = 59875102200.

The previous prime is 74843877707. The next prime is 74843877803. The reversal of 74843877755 is 55777834847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55777834847 = 7 ⋅7968262121.

It is an interprime number because it is at equal distance from previous prime (74843877707) and next prime (74843877803).

It is not a de Polignac number, because 74843877755 - 2¹² = 74843873659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74843877691 and 74843877700.

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, 7484387771 + ... + 7484387780.

It is an arithmetic number, because the mean of its divisors is an integer number (22453163328).

Almost surely, 2^74843877755 is an apocalyptic number.

74843877755 is a deficient number, since it is larger than the sum of its proper divisors (14968775557).

74843877755 is a wasteful number, since it uses less digits than its factorization.

74843877755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14968775556.

The product of its digits is 184396800, while the sum is 65.

The spelling of 74843877755 in words is "seventy-four billion, eight hundred forty-three million, eight hundred seventy-seven thousand, seven hundred fifty-five".