149197269693 has 8 divisors (see below), whose sum is σ = 198934851456. Its totient is φ = 99462267200.

The previous prime is 149197269647. The next prime is 149197269709. The reversal of 149197269693 is 396962791941.

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

It is a cyclic number.

It is not a de Polignac number, because 149197269693 - 2⁶ = 149197269629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149197269623) 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, 505548 + ... + 744293.

It is an arithmetic number, because the mean of its divisors is an integer number (24866856432).

Almost surely, 2^149197269693 is an apocalyptic number.

It is an amenable number.

149197269693 is a deficient number, since it is larger than the sum of its proper divisors (49737581763).

149197269693 is a wasteful number, since it uses less digits than its factorization.

149197269693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289635.

The product of its digits is 39680928, while the sum is 66.

The spelling of 149197269693 in words is "one hundred forty-nine billion, one hundred ninety-seven million, two hundred sixty-nine thousand, six hundred ninety-three".