28953429177 has 8 divisors (see below), whose sum is σ = 38615714560. Its totient is φ = 19296714960.

The previous prime is 28953429151. The next prime is 28953429187. The reversal of 28953429177 is 77192435982.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-28953429177 is a prime.

It is a super-2 number, since 2×28953429177² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28953429187) 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, 1380649 + ... + 1401462.

It is an arithmetic number, because the mean of its divisors is an integer number (4826964320).

Almost surely, 2^28953429177 is an apocalyptic number.

It is an amenable number.

28953429177 is a deficient number, since it is larger than the sum of its proper divisors (9662285383).

28953429177 is a wasteful number, since it uses less digits than its factorization.

28953429177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785583.

The product of its digits is 7620480, while the sum is 57.

The spelling of 28953429177 in words is "twenty-eight billion, nine hundred fifty-three million, four hundred twenty-nine thousand, one hundred seventy-seven".