77141422542 has 16 divisors (see below), whose sum is σ = 156897809280. Its totient is φ = 25277980152.

The previous prime is 77141422541. The next prime is 77141422559. The reversal of 77141422542 is 24522414177.

It is a self number, because there is not a number n which added to its sum of digits gives 77141422542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77141422541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108956458 + ... + 108957165.

It is an arithmetic number, because the mean of its divisors is an integer number (9806113080).

Almost surely, 2^77141422542 is an apocalyptic number.

77141422542 is an abundant number, since it is smaller than the sum of its proper divisors (79756386738).

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

77141422542 is a wasteful number, since it uses less digits than its factorization.

77141422542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217913687.

The product of its digits is 125440, while the sum is 39.

The spelling of 77141422542 in words is "seventy-seven billion, one hundred forty-one million, four hundred twenty-two thousand, five hundred forty-two".