3891265275390 has 16 divisors (see below), whose sum is σ = 9339036661008. Its totient is φ = 1037670740096.

The previous prime is 3891265275383. The next prime is 3891265275407. The reversal of 3891265275390 is 935725621983.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64854421227 + ... + 64854421286.

It is an arithmetic number, because the mean of its divisors is an integer number (583689791313).

Almost surely, 2^{3891265275390} is an apocalyptic number.

3891265275390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3891265275390 is an abundant number, since it is smaller than the sum of its proper divisors (5447771385618).

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

3891265275390 is a wasteful number, since it uses less digits than its factorization.

3891265275390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129708842523.

The product of its (nonzero) digits is 24494400, while the sum is 60.

The spelling of 3891265275390 in words is "three trillion, eight hundred ninety-one billion, two hundred sixty-five million, two hundred seventy-five thousand, three hundred ninety".