2061257464461 has 32 divisors (see below), whose sum is σ = 3007513313280. Its totient is φ = 1248043161024.

The previous prime is 2061257464439. The next prime is 2061257464507. The reversal of 2061257464461 is 1644647521602.

It is not a de Polignac number, because 2061257464461 - 2¹⁷ = 2061257333389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2061257464461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061257464421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1722196 + ... + 2662418.

It is an arithmetic number, because the mean of its divisors is an integer number (93984791040).

Almost surely, 2^{2061257464461} is an apocalyptic number.

It is an amenable number.

2061257464461 is a deficient number, since it is larger than the sum of its proper divisors (946255848819).

2061257464461 is a wasteful number, since it uses less digits than its factorization.

2061257464461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941145.

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 2061257464461 in words is "two trillion, sixty-one billion, two hundred fifty-seven million, four hundred sixty-four thousand, four hundred sixty-one".