74376078663 has 4 divisors (see below), whose sum is σ = 99168104888. Its totient is φ = 49584052440.

The previous prime is 74376078617. The next prime is 74376078671. The reversal of 74376078663 is 36687067347.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 74376078663 - 2³⁴ = 57196209479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74376078163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12396013108 + ... + 12396013113.

It is an arithmetic number, because the mean of its divisors is an integer number (24792026222).

Almost surely, 2^74376078663 is an apocalyptic number.

74376078663 is a deficient number, since it is larger than the sum of its proper divisors (24792026225).

74376078663 is a wasteful number, since it uses less digits than its factorization.

74376078663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24792026224.

The product of its (nonzero) digits is 21337344, while the sum is 57.

The spelling of 74376078663 in words is "seventy-four billion, three hundred seventy-six million, seventy-eight thousand, six hundred sixty-three".