2061415449639 has 128 divisors (see below), whose sum is σ = 4084165836800. Its totient is φ = 996881489280.

The previous prime is 2061415449637. The next prime is 2061415449647. The reversal of 2061415449639 is 9369445141602.

2061415449639 is a `hidden beast` number, since 2 + 0 + 6 + 1 + 4 + 1 + 544 + 96 + 3 + 9 = 666.

It is not a de Polignac number, because 2061415449639 - 2¹ = 2061415449637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061415449637) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 734952 + ... + 2159394.

It is an arithmetic number, because the mean of its divisors is an integer number (31907545600).

Almost surely, 2^{2061415449639} is an apocalyptic number.

2061415449639 is a deficient number, since it is larger than the sum of its proper divisors (2022750387161).

2061415449639 is a wasteful number, since it uses less digits than its factorization.

2061415449639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424522 (or 1424516 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 2061415449639 in words is "two trillion, sixty-one billion, four hundred fifteen million, four hundred forty-nine thousand, six hundred thirty-nine".