72549649510 has 16 divisors (see below), whose sum is σ = 140634705456. Its totient is φ = 26787562848.

The previous prime is 72549649499. The next prime is 72549649511. The reversal of 72549649510 is 1594694527.

It is a super-3 number, since 3×72549649510³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72549649511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279036984 + ... + 279037243.

It is an arithmetic number, because the mean of its divisors is an integer number (8789669091).

Almost surely, 2^72549649510 is an apocalyptic number.

72549649510 is a deficient number, since it is larger than the sum of its proper divisors (68085055946).

72549649510 is a wasteful number, since it uses less digits than its factorization.

72549649510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558074247.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 72549649510 in words is "seventy-two billion, five hundred forty-nine million, six hundred forty-nine thousand, five hundred ten".