3485387251481 has 4 divisors (see below), whose sum is σ = 3485575862964. Its totient is φ = 3485198640000.

The previous prime is 3485387251469. The next prime is 3485387251487. The reversal of 3485387251481 is 1841527835843.

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 3215835225625 + 269552025856 = 1793275^2 + 519184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3485387251481 is a prime.

It is a super-2 number, since 2×3485387251481² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3485387251481.

It is not an unprimeable number, because it can be changed into a prime (3485387251487) 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, 94278020 + ... + 94314981.

It is an arithmetic number, because the mean of its divisors is an integer number (871393965741).

Almost surely, 2^{3485387251481} is an apocalyptic number.

It is an amenable number.

3485387251481 is a deficient number, since it is larger than the sum of its proper divisors (188611483).

3485387251481 is a wasteful number, since it uses less digits than its factorization.

3485387251481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188611482.

The product of its digits is 25804800, while the sum is 59.

The spelling of 3485387251481 in words is "three trillion, four hundred eighty-five billion, three hundred eighty-seven million, two hundred fifty-one thousand, four hundred eighty-one".