72210011491 has 8 divisors (see below), whose sum is σ = 76771268640. Its totient is φ = 67767228672.

The previous prime is 72210011483. The next prime is 72210011507. The reversal of 72210011491 is 19411001227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72210011491 - 2³ = 72210011483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72210011411) 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, 29617326 + ... + 29619763.

It is an arithmetic number, because the mean of its divisors is an integer number (9596408580).

Almost surely, 2^72210011491 is an apocalyptic number.

72210011491 is a deficient number, since it is larger than the sum of its proper divisors (4561257149).

72210011491 is a wasteful number, since it uses less digits than its factorization.

72210011491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59237165.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 72210011491 in words is "seventy-two billion, two hundred ten million, eleven thousand, four hundred ninety-one".