172023047653140 has 72 divisors (see below), whose sum is σ = 521806178923848. Its totient is φ = 45872554740480.

The previous prime is 172023047653027. The next prime is 172023047653153. The reversal of 172023047653140 is 41356740320271.

It is a happy number.

172023047653140 is a `hidden beast` number, since 1 + 7 + 2 + 0 + 2 + 3 + 0 + 4 + 76 + 531 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 71083008793476 + 100940038859664 = 8431074^2 + 10046892^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 30548850 + ... + 35739030.

It is an arithmetic number, because the mean of its divisors is an integer number (7247308040609).

Almost surely, 2^{172023047653140} is an apocalyptic number.

172023047653140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172023047653140 is an abundant number, since it is smaller than the sum of its proper divisors (349783131270708).

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

172023047653140 is a wasteful number, since it uses less digits than its factorization.

172023047653140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5374329 (or 5374324 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 172023047653140 in words is "one hundred seventy-two trillion, twenty-three billion, forty-seven million, six hundred fifty-three thousand, one hundred forty".