78776042 has 8 divisors (see below), whose sum is σ = 120678336. Its totient is φ = 38549932.

The previous prime is 78776039. The next prime is 78776051. The reversal of 78776042 is 24067787.

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

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, 418928 + ... + 419115.

It is an arithmetic number, because the mean of its divisors is an integer number (15084792).

Almost surely, 2^78776042 is an apocalyptic number.

78776042 is a deficient number, since it is larger than the sum of its proper divisors (41902294).

78776042 is a wasteful number, since it uses less digits than its factorization.

78776042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838092.

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 78776042 is about 8875.5868538368. The cubic root of 78776042 is about 428.6781871922.

The spelling of 78776042 in words is "seventy-eight million, seven hundred seventy-six thousand, forty-two".