72521872883830 has 16 divisors (see below), whose sum is σ = 132679360883664. Its totient is φ = 28533195888480.

The previous prime is 72521872883813. The next prime is 72521872883833. The reversal of 72521872883830 is 3838827812527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72521872883833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59444157492 + ... + 59444158711.

It is an arithmetic number, because the mean of its divisors is an integer number (8292460055229).

Almost surely, 2^{72521872883830} is an apocalyptic number.

72521872883830 is a deficient number, since it is larger than the sum of its proper divisors (60157487999834).

72521872883830 is a wasteful number, since it uses less digits than its factorization.

72521872883830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118888316271.

The product of its (nonzero) digits is 72253440, while the sum is 64.

The spelling of 72521872883830 in words is "seventy-two trillion, five hundred twenty-one billion, eight hundred seventy-two million, eight hundred eighty-three thousand, eight hundred thirty".