618416420624 has 40 divisors (see below), whose sum is σ = 1211401315800. Its totient is φ = 305814545408.

The previous prime is 618416420621. The next prime is 618416420627. The reversal of 618416420624 is 426024614816.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (618416420621) and next prime (618416420627).

It can be written as a sum of positive squares in 4 ways, for example, as 77544427024 + 540871993600 = 278468^2 + 735440^2 .

It is not an unprimeable number, because it can be changed into a prime (618416420621) 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, 1187 + ... + 1112130.

It is an arithmetic number, because the mean of its divisors is an integer number (30285032895).

Almost surely, 2^618416420624 is an apocalyptic number.

It is an amenable number.

618416420624 is a deficient number, since it is larger than the sum of its proper divisors (592984895176).

618416420624 is a wasteful number, since it uses less digits than its factorization.

618416420624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113707 (or 1113701 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 618416420624 in words is "six hundred eighteen billion, four hundred sixteen million, four hundred twenty thousand, six hundred twenty-four".