5423723207540 has 72 divisors (see below), whose sum is σ = 13255822197576. Its totient is φ = 1856247500800.

The previous prime is 5423723207509. The next prime is 5423723207543. The reversal of 5423723207540 is 457023273245.

It can be written as a sum of positive squares in 4 ways, for example, as 593204959204 + 4830518248336 = 770198^2 + 2197844^2 .

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 5423723207491 and 5423723207500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5423723207543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65876741 + ... + 65959020.

It is an arithmetic number, because the mean of its divisors is an integer number (184108641633).

Almost surely, 2^{5423723207540} is an apocalyptic number.

It is an amenable number.

5423723207540 is an abundant number, since it is smaller than the sum of its proper divisors (7832098990036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5423723207540 is a wasteful number, since it uses less digits than its factorization.

5423723207540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131835809 (or 131835796 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 44.

The spelling of 5423723207540 in words is "five trillion, four hundred twenty-three billion, seven hundred twenty-three million, two hundred seven thousand, five hundred forty".