149109543994 has 32 divisors (see below), whose sum is σ = 231036766272. Its totient is φ = 72140112000.

The previous prime is 149109543991. The next prime is 149109544039. The reversal of 149109543994 is 499345901941.

It is a super-2 number, since 2×149109543994² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (149109543991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6208429 + ... + 6232399.

It is an arithmetic number, because the mean of its divisors is an integer number (7219898946).

Almost surely, 2^149109543994 is an apocalyptic number.

149109543994 is a deficient number, since it is larger than the sum of its proper divisors (81927222278).

149109543994 is a wasteful number, since it uses less digits than its factorization.

149109543994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24862.

The product of its (nonzero) digits is 6298560, while the sum is 58.

The spelling of 149109543994 in words is "one hundred forty-nine billion, one hundred nine million, five hundred forty-three thousand, nine hundred ninety-four".