149734427491 has 8 divisors (see below), whose sum is σ = 164167488000. Its totient is φ = 135438173640.

The previous prime is 149734427461. The next prime is 149734427497. The reversal of 149734427491 is 194724437941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149734427491 - 2⁵ = 149734427459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149734427497) 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, 34199371 + ... + 34203748.

It is an arithmetic number, because the mean of its divisors is an integer number (20520936000).

Almost surely, 2^149734427491 is an apocalyptic number.

149734427491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

149734427491 is a deficient number, since it is larger than the sum of its proper divisors (14433060509).

149734427491 is a wasteful number, since it uses less digits than its factorization.

149734427491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68403329.

The product of its digits is 6096384, while the sum is 55.

The spelling of 149734427491 in words is "one hundred forty-nine billion, seven hundred thirty-four million, four hundred twenty-seven thousand, four hundred ninety-one".