6491274721946 has 32 divisors (see below), whose sum is σ = 11465203857408. Its totient is φ = 2698433228160.

The previous prime is 6491274721931. The next prime is 6491274722003.

6491274721946 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6491274721946² (a number of 26 digits) contains 22 as substring.

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, 32585210 + ... + 32783813.

It is an arithmetic number, because the mean of its divisors is an integer number (358287620544).

Almost surely, 2^{6491274721946} is an apocalyptic number.

6491274721946 is a deficient number, since it is larger than the sum of its proper divisors (4973929135462).

6491274721946 is a wasteful number, since it uses less digits than its factorization.

6491274721946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65369246.

The product of its digits is 36578304, while the sum is 62.

The spelling of 6491274721946 in words is "six trillion, four hundred ninety-one billion, two hundred seventy-four million, seven hundred twenty-one thousand, nine hundred forty-six".