172093807149 has 48 divisors (see below), whose sum is σ = 262581095616. Its totient is φ = 100089665280.

The previous prime is 172093807147. The next prime is 172093807279. The reversal of 172093807149 is 941708390271.

It is not a de Polignac number, because 172093807149 - 2¹ = 172093807147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172093807147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 892702 + ... + 1068224.

It is an arithmetic number, because the mean of its divisors is an integer number (5470439492).

Almost surely, 2^172093807149 is an apocalyptic number.

It is an amenable number.

172093807149 is a deficient number, since it is larger than the sum of its proper divisors (90487288467).

172093807149 is a wasteful number, since it uses less digits than its factorization.

172093807149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175658 (or 175647 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 51.

The spelling of 172093807149 in words is "one hundred seventy-two billion, ninety-three million, eight hundred seven thousand, one hundred forty-nine".