4000485701461 has 4 divisors (see below), whose sum is σ = 4138433484300. Its totient is φ = 3862537918624.

The previous prime is 4000485701411. The next prime is 4000485701497. The reversal of 4000485701461 is 1641075840004.

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 819738295236 + 3180747406225 = 905394^2 + 1783465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4000485701461 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 (4000485701411) 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, 68973891376 + ... + 68973891433.

It is an arithmetic number, because the mean of its divisors is an integer number (1034608371075).

Almost surely, 2^{4000485701461} is an apocalyptic number.

It is an amenable number.

4000485701461 is a deficient number, since it is larger than the sum of its proper divisors (137947782839).

4000485701461 is a wasteful number, since it uses less digits than its factorization.

4000485701461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137947782838.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 4000485701461 in words is "four trillion, four hundred eighty-five million, seven hundred one thousand, four hundred sixty-one".