617423046540 has 48 divisors (see below), whose sum is σ = 1729444560480. Its totient is φ = 164583285760.

The previous prime is 617423046533. The next prime is 617423046547. The reversal of 617423046540 is 45640324716.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (617423046533) and next prime (617423046547).

It is a super-2 number, since 2×617423046540² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 617423046492 and 617423046501.

It is not an unprimeable number, because it can be changed into a prime (617423046547) 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, 1805805 + ... + 2120324.

It is an arithmetic number, because the mean of its divisors is an integer number (36030095010).

Almost surely, 2^617423046540 is an apocalyptic number.

617423046540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

617423046540 is an abundant number, since it is smaller than the sum of its proper divisors (1112021513940).

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

617423046540 is a wasteful number, since it uses less digits than its factorization.

617423046540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3928762 (or 3928760 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 617423046540 in words is "six hundred seventeen billion, four hundred twenty-three million, forty-six thousand, five hundred forty".