72031442450 has 192 divisors, whose sum is σ = 159458544000. Its totient is φ = 23924736000.

The previous prime is 72031442449. The next prime is 72031442471. The reversal of 72031442450 is 5424413027.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 38131106 + ... + 38132994.

It is an arithmetic number, because the mean of its divisors is an integer number (830513250).

Almost surely, 2^72031442450 is an apocalyptic number.

72031442450 is an abundant number, since it is smaller than the sum of its proper divisors (87427101550).

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

72031442450 is a wasteful number, since it uses less digits than its factorization.

72031442450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061 (or 2056 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

Adding to 72031442450 its reverse (5424413027), we get a palindrome (77455855477).

The spelling of 72031442450 in words is "seventy-two billion, thirty-one million, four hundred forty-two thousand, four hundred fifty".