42321513540 has 48 divisors (see below), whose sum is σ = 118991980800. Its totient is φ = 11238904320.

The previous prime is 42321513431. The next prime is 42321513541. The reversal of 42321513540 is 4531512324.

It is a super-2 number, since 2×42321513540² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 42321513498 and 42321513507.

It is not an unprimeable number, because it can be changed into a prime (42321513541) 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, 1448940 + ... + 1477859.

It is an arithmetic number, because the mean of its divisors is an integer number (2478999600).

Almost surely, 2^42321513540 is an apocalyptic number.

It is an amenable number.

42321513540 is an abundant number, since it is smaller than the sum of its proper divisors (76670467260).

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

42321513540 is a wasteful number, since it uses less digits than its factorization.

42321513540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927052 (or 2927050 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 42321513540 in words is "forty-two billion, three hundred twenty-one million, five hundred thirteen thousand, five hundred forty".