49312761778 has 8 divisors (see below), whose sum is σ = 84536163072. Its totient is φ = 21134040756.

The previous prime is 49312761761. The next prime is 49312761779. The reversal of 49312761778 is 87716721394.

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

It is not an unprimeable number, because it can be changed into a prime (49312761779) 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 3 ways as a sum of consecutive naturals, for example, 1761170050 + ... + 1761170077.

It is an arithmetic number, because the mean of its divisors is an integer number (10567020384).

Almost surely, 2^49312761778 is an apocalyptic number.

49312761778 is a deficient number, since it is larger than the sum of its proper divisors (35223401294).

49312761778 is a wasteful number, since it uses less digits than its factorization.

49312761778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3522340136.

The product of its digits is 3556224, while the sum is 55.

The spelling of 49312761778 in words is "forty-nine billion, three hundred twelve million, seven hundred sixty-one thousand, seven hundred seventy-eight".