172622434690 has 32 divisors (see below), whose sum is σ = 315103426560. Its totient is φ = 68077464000.

The previous prime is 172622434669. The next prime is 172622434693. The reversal of 172622434690 is 96434226271.

It is a super-2 number, since 2×172622434690² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 172622434690.

It is not an unprimeable number, because it can be changed into a prime (172622434693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397935 + ... + 709645.

It is an arithmetic number, because the mean of its divisors is an integer number (9846982080).

Almost surely, 2^172622434690 is an apocalyptic number.

172622434690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172622434690 is a deficient number, since it is larger than the sum of its proper divisors (142480991870).

172622434690 is a wasteful number, since it uses less digits than its factorization.

172622434690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312498.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 172622434690 in words is "one hundred seventy-two billion, six hundred twenty-two million, four hundred thirty-four thousand, six hundred ninety".