1423573711540 has 12 divisors (see below), whose sum is σ = 2989504794276. Its totient is φ = 569429484608.

The previous prime is 1423573711519. The next prime is 1423573711607. The reversal of 1423573711540 is 451173753241.

It can be written as a sum of positive squares in 2 ways, for example, as 703699521424 + 719874190116 = 838868^2 + 848454^2 .

It is a super-2 number, since 2×1423573711540² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35589342769 + ... + 35589342808.

It is an arithmetic number, because the mean of its divisors is an integer number (249125399523).

Almost surely, 2^{1423573711540} is an apocalyptic number.

1423573711540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423573711540 is an abundant number, since it is smaller than the sum of its proper divisors (1565931082736).

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

1423573711540 is a wasteful number, since it uses less digits than its factorization.

1423573711540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71178685586 (or 71178685584 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 1423573711540 in words is "one trillion, four hundred twenty-three billion, five hundred seventy-three million, seven hundred eleven thousand, five hundred forty".