72086481577 has 8 divisors (see below), whose sum is σ = 79717056480. Its totient is φ = 64635449760.

The previous prime is 72086481497. The next prime is 72086481601. The reversal of 72086481577 is 77518468027.

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

It is not a de Polignac number, because 72086481577 - 2⁷ = 72086481449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72086491577) 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, 44884927 + ... + 44886532.

It is an arithmetic number, because the mean of its divisors is an integer number (9964632060).

Almost surely, 2^72086481577 is an apocalyptic number.

It is an amenable number.

72086481577 is a deficient number, since it is larger than the sum of its proper divisors (7630574903).

72086481577 is a wasteful number, since it uses less digits than its factorization.

72086481577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89771543.

The product of its (nonzero) digits is 5268480, while the sum is 55.

The spelling of 72086481577 in words is "seventy-two billion, eighty-six million, four hundred eighty-one thousand, five hundred seventy-seven".