18493400094 has 32 divisors (see below), whose sum is σ = 39905656224. Its totient is φ = 5679745920.

The previous prime is 18493400087. The next prime is 18493400113. The reversal of 18493400094 is 49000439481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176929 + ... + 261324.

It is an arithmetic number, because the mean of its divisors is an integer number (1247051757).

Almost surely, 2^18493400094 is an apocalyptic number.

18493400094 is an abundant number, since it is smaller than the sum of its proper divisors (21412256130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18493400094 is a wasteful number, since it uses less digits than its factorization.

18493400094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438812.

The product of its (nonzero) digits is 124416, while the sum is 42.

It can be divided in two parts, 184 and 93400094, that added together give a triangular number (93400278 = T₁₃₆₆₇).

The spelling of 18493400094 in words is "eighteen billion, four hundred ninety-three million, four hundred thousand, ninety-four".