6490061773020 has 1152 divisors, whose sum is σ = 25262331494400. Its totient is φ = 1365541244928.

The previous prime is 6490061772967. The next prime is 6490061773031. The reversal of 6490061773020 is 203771600946.

6490061773020 is a `hidden beast` number, since 6 + 4 + 9 + 0 + 0 + 617 + 7 + 3 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 6642846772 + ... + 6642847748.

It is an arithmetic number, because the mean of its divisors is an integer number (21929107200).

Almost surely, 2^{6490061773020} is an apocalyptic number.

6490061773020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6490061773020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12631165747200).

6490061773020 is an abundant number, since it is smaller than the sum of its proper divisors (18772269721380).

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

6490061773020 is a wasteful number, since it uses less digits than its factorization.

6490061773020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 6490061773020 in words is "six trillion, four hundred ninety billion, sixty-one million, seven hundred seventy-three thousand, twenty".