297777422642 has 54 divisors (see below), whose sum is σ = 524107408797. Its totient is φ = 126519191568.

The previous prime is 297777422639. The next prime is 297777422693. The reversal of 297777422642 is 246224777792.

It can be written as a sum of positive squares in 2 ways, for example, as 261357135361 + 36420287281 = 511231^2 + 190841^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=385861.

It is a super-4 number, since 4×297777422642⁴ (a number of 47 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1075008608 + ... + 1075008884.

Almost surely, 2^297777422642 is an apocalyptic number.

297777422642 is a deficient number, since it is larger than the sum of its proper divisors (226329986155).

297777422642 is an frugal number, since it uses more digits than its factorization.

297777422642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968 (or 485 counting only the distinct ones).

The product of its digits is 33191424, while the sum is 59.

The spelling of 297777422642 in words is "two hundred ninety-seven billion, seven hundred seventy-seven million, four hundred twenty-two thousand, six hundred forty-two".