618371061 has 64 divisors (see below), whose sum is σ = 1064448000. Its totient is φ = 310003200.

The previous prime is 618371053. The next prime is 618371069. The reversal of 618371061 is 160173816.

It is an interprime number because it is at equal distance from previous prime (618371053) and next prime (618371069).

It is not a de Polignac number, because 618371061 - 2³ = 618371053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618371069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1032040 + ... + 1032638.

It is an arithmetic number, because the mean of its divisors is an integer number (16632000).

Almost surely, 2^618371061 is an apocalyptic number.

It is an amenable number.

618371061 is a deficient number, since it is larger than the sum of its proper divisors (446076939).

618371061 is a wasteful number, since it uses less digits than its factorization.

618371061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 618371061 is about 24867.0678006073. The cubic root of 618371061 is about 851.9544695081.

The spelling of 618371061 in words is "six hundred eighteen million, three hundred seventy-one thousand, sixty-one".