2061249408390 has 32 divisors (see below), whose sum is σ = 5080701247200. Its totient is φ = 534810657024.

The previous prime is 2061249408389. The next prime is 2061249408401. The reversal of 2061249408390 is 938049421602.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 928489615 + ... + 928491834.

It is an arithmetic number, because the mean of its divisors is an integer number (158771913975).

Almost surely, 2^{2061249408390} is an apocalyptic number.

2061249408390 is an abundant number, since it is smaller than the sum of its proper divisors (3019451838810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2061249408390 is a wasteful number, since it uses less digits than its factorization.

2061249408390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856981496.

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 2061249408390 in words is "two trillion, sixty-one billion, two hundred forty-nine million, four hundred eight thousand, three hundred ninety".