1901688378676 has 12 divisors (see below), whose sum is σ = 3405348957472. Its totient is φ = 928731533688.

The previous prime is 1901688378661. The next prime is 1901688378677. The reversal of 1901688378676 is 6768738861091.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1901688378677) 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 3 ways as a sum of consecutive naturals, for example, 5528163720 + ... + 5528164063.

Almost surely, 2^{1901688378676} is an apocalyptic number.

It is an amenable number.

1901688378676 is a deficient number, since it is larger than the sum of its proper divisors (1503660578796).

1901688378676 is a wasteful number, since it uses less digits than its factorization.

1901688378676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11056327830 (or 11056327828 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 70.

The spelling of 1901688378676 in words is "one trillion, nine hundred one billion, six hundred eighty-eight million, three hundred seventy-eight thousand, six hundred seventy-six".