61031034218 has 16 divisors (see below), whose sum is σ = 114135960384. Its totient is φ = 23778324960.

The previous prime is 61031034217. The next prime is 61031034227. The reversal of 61031034218 is 81243013016.

It is not an unprimeable number, because it can be changed into a prime (61031034217) 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, 198152555 + ... + 198152862.

It is an arithmetic number, because the mean of its divisors is an integer number (7133497524).

Almost surely, 2^61031034218 is an apocalyptic number.

61031034218 is a deficient number, since it is larger than the sum of its proper divisors (53104926166).

61031034218 is a wasteful number, since it uses less digits than its factorization.

61031034218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396305437.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 61031034218 in words is "sixty-one billion, thirty-one million, thirty-four thousand, two hundred eighteen".