726511524574251 has 16 divisors (see below), whose sum is σ = 1043220466781696. Its totient is φ = 447073544481696.

The previous prime is 726511524574249. The next prime is 726511524574279. The reversal of 726511524574251 is 152475425115627.

It is not a de Polignac number, because 726511524574251 - 2¹ = 726511524574249 is a prime.

It is a super-2 number, since 2×726511524574251² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 726511524574191 and 726511524574200.

It is not an unprimeable number, because it can be changed into a prime (726511524574201) 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, 216451585 + ... + 219782418.

It is an arithmetic number, because the mean of its divisors is an integer number (65201279173856).

Almost surely, 2^{726511524574251} is an apocalyptic number.

726511524574251 is a deficient number, since it is larger than the sum of its proper divisors (316708942207445).

726511524574251 is a wasteful number, since it uses less digits than its factorization.

726511524574251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436276722.

The product of its digits is 23520000, while the sum is 57.

Adding to 726511524574251 its reverse (152475425115627), we get a palindrome (878986949689878).

The spelling of 726511524574251 in words is "seven hundred twenty-six trillion, five hundred eleven billion, five hundred twenty-four million, five hundred seventy-four thousand, two hundred fifty-one".