3891383802541 has 16 divisors (see below), whose sum is σ = 4023063987840. Its totient is φ = 3761925935040.

The previous prime is 3891383802473. The next prime is 3891383802557. The reversal of 3891383802541 is 1452083831983.

It is a cyclic number.

It is not a de Polignac number, because 3891383802541 - 2¹⁵ = 3891383769773 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 (3891383802041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5970646 + ... + 6590248.

It is an arithmetic number, because the mean of its divisors is an integer number (251441499240).

Almost surely, 2^{3891383802541} is an apocalyptic number.

It is an amenable number.

3891383802541 is a deficient number, since it is larger than the sum of its proper divisors (131680185299).

3891383802541 is a wasteful number, since it uses less digits than its factorization.

3891383802541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621396.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 3891383802541 in words is "three trillion, eight hundred ninety-one billion, three hundred eighty-three million, eight hundred two thousand, five hundred forty-one".