73374372778 has 8 divisors (see below), whose sum is σ = 125784639072. Its totient is φ = 31446159756.

The previous prime is 73374372769. The next prime is 73374372803. The reversal of 73374372778 is 87727347337.

It is a happy number.

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, 2620513300 + ... + 2620513327.

It is an arithmetic number, because the mean of its divisors is an integer number (15723079884).

Almost surely, 2^73374372778 is an apocalyptic number.

73374372778 is a deficient number, since it is larger than the sum of its proper divisors (52410266294).

73374372778 is a wasteful number, since it uses less digits than its factorization.

73374372778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5241026636.

The product of its digits is 29042496, while the sum is 58.

The spelling of 73374372778 in words is "seventy-three billion, three hundred seventy-four million, three hundred seventy-two thousand, seven hundred seventy-eight".