726453431036145 has 48 divisors (see below), whose sum is σ = 1268403962567040. Its totient is φ = 384605637303552.

The previous prime is 726453431036119. The next prime is 726453431036147. The reversal of 726453431036145 is 541630134354627.

726453431036145 is a `hidden beast` number, since 7 + 2 + 6 + 4 + 5 + 3 + 4 + 3 + 10 + 3 + 614 + 5 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-726453431036145 is a prime.

It is a super-2 number, since 2×726453431036145² (a number of 31 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 726453431036091 and 726453431036100.

It is not an unprimeable number, because it can be changed into a prime (726453431036147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 295429222 + ... + 297878048.

It is an arithmetic number, because the mean of its divisors is an integer number (26425082553480).

Almost surely, 2^{726453431036145} is an apocalyptic number.

It is an amenable number.

726453431036145 is a deficient number, since it is larger than the sum of its proper divisors (541950531530895).

726453431036145 is a wasteful number, since it uses less digits than its factorization.

726453431036145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497094 (or 2497091 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 54.

The spelling of 726453431036145 in words is "seven hundred twenty-six trillion, four hundred fifty-three billion, four hundred thirty-one million, thirty-six thousand, one hundred forty-five".