3771404676681 has 4 divisors (see below), whose sum is σ = 5028539568912. Its totient is φ = 2514269784452.

The previous prime is 3771404676673. The next prime is 3771404676713. The reversal of 3771404676681 is 1866764041773.

It is a happy number.

3771404676681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3771404676681 - 2³ = 3771404676673 is a prime.

It is a super-2 number, since 2×3771404676681² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3771404676581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628567446111 + ... + 628567446116.

It is an arithmetic number, because the mean of its divisors is an integer number (1257134892228).

Almost surely, 2^{3771404676681} is an apocalyptic number.

It is an amenable number.

3771404676681 is a deficient number, since it is larger than the sum of its proper divisors (1257134892231).

3771404676681 is a wasteful number, since it uses less digits than its factorization.

3771404676681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257134892230.

The product of its (nonzero) digits is 28449792, while the sum is 60.

The spelling of 3771404676681 in words is "three trillion, seven hundred seventy-one billion, four hundred four million, six hundred seventy-six thousand, six hundred eighty-one".