72454571662 has 16 divisors (see below), whose sum is σ = 118594402992. Its totient is φ = 32924902720.

The previous prime is 72454571647. The next prime is 72454571713. The reversal of 72454571662 is 26617545427.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366943 + ... + 528730.

It is an arithmetic number, because the mean of its divisors is an integer number (7412150187).

Almost surely, 2^72454571662 is an apocalyptic number.

72454571662 is a deficient number, since it is larger than the sum of its proper divisors (46139831330).

72454571662 is a wasteful number, since it uses less digits than its factorization.

72454571662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899363.

The product of its digits is 2822400, while the sum is 49.

The spelling of 72454571662 in words is "seventy-two billion, four hundred fifty-four million, five hundred seventy-one thousand, six hundred sixty-two".