77182944454 has 24 divisors (see below), whose sum is σ = 145435634064. Its totient is φ = 30071276400.

The previous prime is 77182944409. The next prime is 77182944473. The reversal of 77182944454 is 45444928177.

It is a junction number, because it is equal to n+sod(n) for n = 77182944395 and 77182944404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22779577 + ... + 22782964.

It is an arithmetic number, because the mean of its divisors is an integer number (6059818086).

Almost surely, 2^77182944454 is an apocalyptic number.

77182944454 is a deficient number, since it is larger than the sum of its proper divisors (68252689610).

77182944454 is a wasteful number, since it uses less digits than its factorization.

77182944454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45562572 (or 45562561 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 55.

The spelling of 77182944454 in words is "seventy-seven billion, one hundred eighty-two million, nine hundred forty-four thousand, four hundred fifty-four".