654297073922 has 6 divisors (see below), whose sum is σ = 981447326793. Its totient is φ = 327147964992.

The previous prime is 654297073921. The next prime is 654297073981. The reversal of 654297073922 is 229370792456.

It can be written as a sum of positive squares in 2 ways, for example, as 648087791521 + 6209282401 = 805039^2 + 78799^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=571969.

It is a super-2 number, since 2×654297073922² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654297073921) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 857954 + ... + 1429922.

Almost surely, 2^654297073922 is an apocalyptic number.

654297073922 is a deficient number, since it is larger than the sum of its proper divisors (327150252871).

654297073922 is an frugal number, since it uses more digits than its factorization.

654297073922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143940 (or 571971 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 56.

The spelling of 654297073922 in words is "six hundred fifty-four billion, two hundred ninety-seven million, seventy-three thousand, nine hundred twenty-two".