77423820284 has 12 divisors (see below), whose sum is σ = 135595360824. Its totient is φ = 38682288624.

The previous prime is 77423820283. The next prime is 77423820329. The reversal of 77423820284 is 48202832477.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77423820281) 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, 7399499 + ... + 7409954.

It is an arithmetic number, because the mean of its divisors is an integer number (11299613402).

Almost surely, 2^77423820284 is an apocalyptic number.

It is an amenable number.

77423820284 is a deficient number, since it is larger than the sum of its proper divisors (58171540540).

77423820284 is a wasteful number, since it uses less digits than its factorization.

77423820284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14810764 (or 14810762 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 47.

The spelling of 77423820284 in words is "seventy-seven billion, four hundred twenty-three million, eight hundred twenty thousand, two hundred eighty-four".