6495990842735 has 16 divisors (see below), whose sum is σ = 7924569194496. Its totient is φ = 5110794789408.

The previous prime is 6495990842729. The next prime is 6495990842807. The reversal of 6495990842735 is 5372480995946.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6495990842735 - 2²⁰ = 6495989794159 is a prime.

It is a Duffinian 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, 15769487 + ... + 16176176.

It is an arithmetic number, because the mean of its divisors is an integer number (495285574656).

Almost surely, 2^{6495990842735} is an apocalyptic number.

6495990842735 is a deficient number, since it is larger than the sum of its proper divisors (1428578351761).

6495990842735 is a wasteful number, since it uses less digits than its factorization.

6495990842735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31946342.

The product of its (nonzero) digits is 587865600, while the sum is 71.

The spelling of 6495990842735 in words is "six trillion, four hundred ninety-five billion, nine hundred ninety million, eight hundred forty-two thousand, seven hundred thirty-five".