3477148477681 has 4 divisors (see below), whose sum is σ = 3499295920372. Its totient is φ = 3455001034992.

The previous prime is 3477148477661. The next prime is 3477148477687. The reversal of 3477148477681 is 1867748417743.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 864916740081 + 2612231737600 = 930009^2 + 1616240^2 .

It is a cyclic number.

It is not a de Polignac number, because 3477148477681 - 2⁷ = 3477148477553 is a prime.

It is a super-2 number, since 2×3477148477681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3477148477687) 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, 11073721110 + ... + 11073721423.

It is an arithmetic number, because the mean of its divisors is an integer number (874823980093).

Almost surely, 2^{3477148477681} is an apocalyptic number.

It is an amenable number.

3477148477681 is a deficient number, since it is larger than the sum of its proper divisors (22147442691).

3477148477681 is a wasteful number, since it uses less digits than its factorization.

3477148477681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22147442690.

The product of its digits is 177020928, while the sum is 67.

The spelling of 3477148477681 in words is "three trillion, four hundred seventy-seven billion, one hundred forty-eight million, four hundred seventy-seven thousand, six hundred eighty-one".