816882945254 has 8 divisors (see below), whose sum is σ = 1225771461648. Its totient is φ = 408292458040.

The previous prime is 816882945217. The next prime is 816882945287. The reversal of 816882945254 is 452549288618.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×816882945254² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74500442 + ... + 74511405.

It is an arithmetic number, because the mean of its divisors is an integer number (153221432706).

Almost surely, 2^816882945254 is an apocalyptic number.

816882945254 is a deficient number, since it is larger than the sum of its proper divisors (408888516394).

816882945254 is a wasteful number, since it uses less digits than its factorization.

816882945254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149014590.

The product of its digits is 44236800, while the sum is 62.

The spelling of 816882945254 in words is "eight hundred sixteen billion, eight hundred eighty-two million, nine hundred forty-five thousand, two hundred fifty-four".