3806778743760 has 80 divisors (see below), whose sum is σ = 11801215013184. Its totient is φ = 1015123716096.

The previous prime is 3806778743711. The next prime is 3806778743777. The reversal of 3806778743760 is 673478776083.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 3806778743691 and 3806778743700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20632879 + ... + 20816561.

Almost surely, 2^{3806778743760} is an apocalyptic number.

3806778743760 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3806778743760 is an abundant number, since it is smaller than the sum of its proper divisors (7994436269424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3806778743760 is a wasteful number, since it uses less digits than its factorization.

3806778743760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270052 (or 270046 counting only the distinct ones).

The product of its (nonzero) digits is 199148544, while the sum is 66.

The spelling of 3806778743760 in words is "three trillion, eight hundred six billion, seven hundred seventy-eight million, seven hundred forty-three thousand, seven hundred sixty".