72526798805 has 16 divisors (see below), whose sum is σ = 89848203264. Its totient is φ = 56144432640.

The previous prime is 72526798781. The next prime is 72526798807. The reversal of 72526798805 is 50889762527.

It is not a de Polignac number, because 72526798805 - 2⁶ = 72526798741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72526798807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2612357 + ... + 2639973.

It is an arithmetic number, because the mean of its divisors is an integer number (5615512704).

Almost surely, 2^72526798805 is an apocalyptic number.

It is an amenable number.

72526798805 is a deficient number, since it is larger than the sum of its proper divisors (17321404459).

72526798805 is a wasteful number, since it uses less digits than its factorization.

72526798805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44596.

The product of its (nonzero) digits is 16934400, while the sum is 59.

Adding to 72526798805 its sum of digits (59), we get a square (72526798864 = 269308²).

The spelling of 72526798805 in words is "seventy-two billion, five hundred twenty-six million, seven hundred ninety-eight thousand, eight hundred five".