618126540 has 48 divisors (see below), whose sum is σ = 1732603488. Its totient is φ = 164657664.

The previous prime is 618126529. The next prime is 618126547. The reversal of 618126540 is 45621816.

It is not an unprimeable number, because it can be changed into a prime (618126547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56994 + ... + 66966.

It is an arithmetic number, because the mean of its divisors is an integer number (36095906).

Almost surely, 2^618126540 is an apocalyptic number.

618126540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

618126540 is an abundant number, since it is smaller than the sum of its proper divisors (1114476948).

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

618126540 is a wasteful number, since it uses less digits than its factorization.

618126540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11018 (or 11016 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 618126540 is about 24862.1507516948. The cubic root of 618126540 is about 851.8421592591.

The spelling of 618126540 in words is "six hundred eighteen million, one hundred twenty-six thousand, five hundred forty".