3810638581078 has 48 divisors (see below), whose sum is σ = 6795893744640. Its totient is φ = 1569743959392.

The previous prime is 3810638581063. The next prime is 3810638581201. The reversal of 3810638581078 is 8701858360183.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1899933 + ... + 3351271.

It is an arithmetic number, because the mean of its divisors is an integer number (141581119680).

Almost surely, 2^{3810638581078} is an apocalyptic number.

3810638581078 is a deficient number, since it is larger than the sum of its proper divisors (2985255163562).

3810638581078 is a wasteful number, since it uses less digits than its factorization.

3810638581078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451629 (or 1451600 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 58.

The spelling of 3810638581078 in words is "three trillion, eight hundred ten billion, six hundred thirty-eight million, five hundred eighty-one thousand, seventy-eight".