1672478888540 has 48 divisors (see below), whose sum is σ = 3713203149600. Its totient is φ = 631013836032.

The previous prime is 1672478888503. The next prime is 1672478888593. The reversal of 1672478888540 is 458888742761.

It is a super-2 number, since 2×1672478888540² (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 15 ways as a sum of consecutive naturals, for example, 9522719 + ... + 9696758.

It is an arithmetic number, because the mean of its divisors is an integer number (77358398950).

Almost surely, 2^{1672478888540} is an apocalyptic number.

1672478888540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1672478888540 is an abundant number, since it is smaller than the sum of its proper divisors (2040724261060).

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

1672478888540 is a wasteful number, since it uses less digits than its factorization.

1672478888540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19219734 (or 19219732 counting only the distinct ones).

The product of its (nonzero) digits is 192675840, while the sum is 68.

The spelling of 1672478888540 in words is "one trillion, six hundred seventy-two billion, four hundred seventy-eight million, eight hundred eighty-eight thousand, five hundred forty".