72140622510 has 128 divisors (see below), whose sum is σ = 200177754624. Its totient is φ = 16444252160.

The previous prime is 72140622481. The next prime is 72140622553. The reversal of 72140622510 is 1522604127.

It is a super-2 number, since 2×72140622510² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6518902 + ... + 6529958.

It is an arithmetic number, because the mean of its divisors is an integer number (1563888708).

Almost surely, 2^72140622510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72140622510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100088877312).

72140622510 is an abundant number, since it is smaller than the sum of its proper divisors (128037132114).

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

72140622510 is a wasteful number, since it uses less digits than its factorization.

72140622510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12258.

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 72140622510 in words is "seventy-two billion, one hundred forty million, six hundred twenty-two thousand, five hundred ten".