618213031047 has 12 divisors (see below), whose sum is σ = 893750217984. Its totient is φ = 411783940800.

The previous prime is 618213031043. The next prime is 618213031091. The reversal of 618213031047 is 740130312816.

It is a happy number.

618213031047 is a `hidden beast` number, since 618 + 2 + 1 + 3 + 0 + 31 + 0 + 4 + 7 = 666.

It is not a de Polignac number, because 618213031047 - 2² = 618213031043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618213031043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29829058 + ... + 29849775.

It is an arithmetic number, because the mean of its divisors is an integer number (74479184832).

Almost surely, 2^618213031047 is an apocalyptic number.

618213031047 is a deficient number, since it is larger than the sum of its proper divisors (275537186937).

618213031047 is a wasteful number, since it uses less digits than its factorization.

618213031047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59679990 (or 59679987 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 618213031047 in words is "six hundred eighteen billion, two hundred thirteen million, thirty-one thousand, forty-seven".