215463130454 has 48 divisors (see below), whose sum is σ = 382031400240. Its totient is φ = 90345415680.

The previous prime is 215463130417. The next prime is 215463130469. The reversal of 215463130454 is 454031364512.

215463130454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×215463130454² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5964254 + ... + 6000270.

It is an arithmetic number, because the mean of its divisors is an integer number (7958987505).

Almost surely, 2^215463130454 is an apocalyptic number.

215463130454 is a deficient number, since it is larger than the sum of its proper divisors (166568269786).

215463130454 is a wasteful number, since it uses less digits than its factorization.

215463130454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37665 (or 37652 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 215463130454 its reverse (454031364512), we get a palindrome (669494494966).

The spelling of 215463130454 in words is "two hundred fifteen billion, four hundred sixty-three million, one hundred thirty thousand, four hundred fifty-four".