1597838560540 has 24 divisors (see below), whose sum is σ = 3359724620112. Its totient is φ = 638323301760.

The previous prime is 1597838560529. The next prime is 1597838560541. The reversal of 1597838560540 is 450658387951.

It is a super-3 number, since 3×1597838560540³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1597838560541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50741521 + ... + 50773000.

It is an arithmetic number, because the mean of its divisors is an integer number (139988525838).

Almost surely, 2^{1597838560540} is an apocalyptic number.

1597838560540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1597838560540 is an abundant number, since it is smaller than the sum of its proper divisors (1761886059572).

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

1597838560540 is a wasteful number, since it uses less digits than its factorization.

1597838560540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101515317 (or 101515315 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 61.

The spelling of 1597838560540 in words is "one trillion, five hundred ninety-seven billion, eight hundred thirty-eight million, five hundred sixty thousand, five hundred forty".