3155421431771 has 16 divisors (see below), whose sum is σ = 3645065869824. Its totient is φ = 2675586017664.

The previous prime is 3155421431731. The next prime is 3155421431779. The reversal of 3155421431771 is 1771341245513.

It is not a de Polignac number, because 3155421431771 - 2¹⁸ = 3155421169627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3155421431779) 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, 3400031 + ... + 4227416.

It is an arithmetic number, because the mean of its divisors is an integer number (227816616864).

Almost surely, 2^{3155421431771} is an apocalyptic number.

3155421431771 is a deficient number, since it is larger than the sum of its proper divisors (489644438053).

3155421431771 is a wasteful number, since it uses less digits than its factorization.

3155421431771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628090.

The product of its digits is 352800, while the sum is 44.

The spelling of 3155421431771 in words is "three trillion, one hundred fifty-five billion, four hundred twenty-one million, four hundred thirty-one thousand, seven hundred seventy-one".