72486649949 has 48 divisors (see below), whose sum is σ = 86143599360. Its totient is φ = 59734920960.

The previous prime is 72486649943. The next prime is 72486649951. The reversal of 72486649949 is 94994668427.

It is not a de Polignac number, because 72486649949 - 2⁸ = 72486649693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72486649943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 400478639 + ... + 400478819.

It is an arithmetic number, because the mean of its divisors is an integer number (1794658320).

Almost surely, 2^72486649949 is an apocalyptic number.

72486649949 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

72486649949 is a deficient number, since it is larger than the sum of its proper divisors (13656949411).

72486649949 is a wasteful number, since it uses less digits than its factorization.

72486649949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 459 counting only the distinct ones).

The product of its digits is 188116992, while the sum is 68.

The spelling of 72486649949 in words is "seventy-two billion, four hundred eighty-six million, six hundred forty-nine thousand, nine hundred forty-nine".