618269652052 has 36 divisors (see below), whose sum is σ = 1203267685116. Its totient is φ = 277642909440.

The previous prime is 618269651971. The next prime is 618269652053. The reversal of 618269652052 is 250256962816.

It can be written as a sum of positive squares in 6 ways, for example, as 49940628676 + 568329023376 = 223474^2 + 753876^2 .

It is a super-2 number, since 2×618269652052² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618269652053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12334449 + ... + 12384472.

Almost surely, 2^618269652052 is an apocalyptic number.

It is an amenable number.

618269652052 is a deficient number, since it is larger than the sum of its proper divisors (584998033064).

618269652052 is a wasteful number, since it uses less digits than its factorization.

618269652052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24718988 (or 24718973 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 618269652052 in words is "six hundred eighteen billion, two hundred sixty-nine million, six hundred fifty-two thousand, fifty-two".