213263523655450 has 96 divisors (see below), whose sum is σ = 408211770149568. Its totient is φ = 82842596160000.

The previous prime is 213263523655447. The next prime is 213263523655453. The reversal of 213263523655450 is 54556325362312.

It is an interprime number because it is at equal distance from previous prime (213263523655447) and next prime (213263523655453).

It is not an unprimeable number, because it can be changed into a prime (213263523655453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2652920157 + ... + 2653000543.

It is an arithmetic number, because the mean of its divisors is an integer number (4252205939058).

Almost surely, 2^{213263523655450} is an apocalyptic number.

213263523655450 is a deficient number, since it is larger than the sum of its proper divisors (194948246494118).

213263523655450 is a wasteful number, since it uses less digits than its factorization.

213263523655450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86368 (or 86363 counting only the distinct ones).

The product of its (nonzero) digits is 19440000, while the sum is 52.

The spelling of 213263523655450 in words is "two hundred thirteen trillion, two hundred sixty-three billion, five hundred twenty-three million, six hundred fifty-five thousand, four hundred fifty".