77773546942 has 192 divisors, whose sum is σ = 158811891840. Its totient is φ = 27707277312.

The previous prime is 77773546927. The next prime is 77773546943. The reversal of 77773546942 is 24964537777.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77773546943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 873860034 + ... + 873860122.

It is an arithmetic number, because the mean of its divisors is an integer number (827145270).

Almost surely, 2^77773546942 is an apocalyptic number.

77773546942 is an abundant number, since it is smaller than the sum of its proper divisors (81038344898).

77773546942 is a wasteful number, since it uses less digits than its factorization.

77773546942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 254 counting only the distinct ones).

The product of its digits is 62233920, while the sum is 61.

The spelling of 77773546942 in words is "seventy-seven billion, seven hundred seventy-three million, five hundred forty-six thousand, nine hundred forty-two".