208088172954 has 48 divisors (see below), whose sum is σ = 480307568832. Its totient is φ = 64882041984.

The previous prime is 208088172953. The next prime is 208088172973. The reversal of 208088172954 is 459271880802.

It is a super-2 number, since 2×208088172954² (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 208088172954.

It is not an unprimeable number, because it can be changed into a prime (208088172953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2036094 + ... + 2135849.

It is an arithmetic number, because the mean of its divisors is an integer number (10006407684).

Almost surely, 2^208088172954 is an apocalyptic number.

208088172954 is an abundant number, since it is smaller than the sum of its proper divisors (272219395878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208088172954 is a wasteful number, since it uses less digits than its factorization.

208088172954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4172131 (or 4172128 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 208088172954 in words is "two hundred eight billion, eighty-eight million, one hundred seventy-two thousand, nine hundred fifty-four".