371778087997 has 8 divisors (see below), whose sum is σ = 376436698200. Its totient is φ = 367148324160.

The previous prime is 371778087983. The next prime is 371778088037. The reversal of 371778087997 is 799780877173.

It can be written as a sum of positive squares in 4 ways, for example, as 4316621401 + 367461466596 = 65701^2 + 606186^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 371778087997 - 2⁷ = 371778087869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (371778087977) 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, 7185654 + ... + 7237207.

It is an arithmetic number, because the mean of its divisors is an integer number (47054587275).

Almost surely, 2^371778087997 is an apocalyptic number.

It is an amenable number.

371778087997 is a deficient number, since it is larger than the sum of its proper divisors (4658610203).

371778087997 is a wasteful number, since it uses less digits than its factorization.

371778087997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14423183.

The product of its (nonzero) digits is 261382464, while the sum is 73.

The spelling of 371778087997 in words is "three hundred seventy-one billion, seven hundred seventy-eight million, eighty-seven thousand, nine hundred ninety-seven".