77454244506 has 8 divisors (see below), whose sum is σ = 154908489024. Its totient is φ = 25818081500.

The previous prime is 77454244487. The next prime is 77454244531. The reversal of 77454244506 is 60544245477.

It is a sphenic number, since it is the product of 3 distinct primes.

77454244506 is an admirable number.

It is a Curzon 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, 6454520370 + ... + 6454520381.

It is an arithmetic number, because the mean of its divisors is an integer number (19363561128).

Almost surely, 2^77454244506 is an apocalyptic number.

77454244506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

77454244506 is a wasteful number, since it uses less digits than its factorization.

77454244506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12909040756.

The product of its (nonzero) digits is 3763200, while the sum is 48.

The spelling of 77454244506 in words is "seventy-seven billion, four hundred fifty-four million, two hundred forty-four thousand, five hundred six".