297897621946 has 16 divisors (see below), whose sum is σ = 452547095040. Its totient is φ = 147048960240.

The previous prime is 297897621943. The next prime is 297897621947. The reversal of 297897621946 is 649126798792.

It is a super-2 number, since 2×297897621946² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (297897621943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1624260 + ... + 1798336.

It is an arithmetic number, because the mean of its divisors is an integer number (28284193440).

Almost surely, 2^297897621946 is an apocalyptic number.

297897621946 is a deficient number, since it is larger than the sum of its proper divisors (154649473094).

297897621946 is a wasteful number, since it uses less digits than its factorization.

297897621946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184989.

The product of its digits is 164602368, while the sum is 70.

The spelling of 297897621946 in words is "two hundred ninety-seven billion, eight hundred ninety-seven million, six hundred twenty-one thousand, nine hundred forty-six".