705104203752172 has 72 divisors (see below), whose sum is σ = 1497824462018304. Its totient is φ = 289044012948768.

The previous prime is 705104203752101. The next prime is 705104203752203. The reversal of 705104203752172 is 271257302401507.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269933023 + ... + 272532649.

It is an arithmetic number, because the mean of its divisors is an integer number (20803117528032).

Almost surely, 2^{705104203752172} is an apocalyptic number.

It is an amenable number.

705104203752172 is an abundant number, since it is smaller than the sum of its proper divisors (792720258266132).

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

705104203752172 is a wasteful number, since it uses less digits than its factorization.

705104203752172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659835 (or 2659826 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 46.

The spelling of 705104203752172 in words is "seven hundred five trillion, one hundred four billion, two hundred three million, seven hundred fifty-two thousand, one hundred seventy-two".