83425925091 has 8 divisors (see below), whose sum is σ = 111240426064. Its totient is φ = 55614353760.

The previous prime is 83425925081. The next prime is 83425925117. The reversal of 83425925091 is 19052952438.

It is a happy number.

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

It is not a de Polignac number, because 83425925091 - 2⁶ = 83425925027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83425925091.

It is not an unprimeable number, because it can be changed into a prime (83425925081) 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, 665080 + ... + 780501.

It is an arithmetic number, because the mean of its divisors is an integer number (13905053258).

Almost surely, 2^83425925091 is an apocalyptic number.

83425925091 is a deficient number, since it is larger than the sum of its proper divisors (27814500973).

83425925091 is a wasteful number, since it uses less digits than its factorization.

83425925091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464821.

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 83425925091 in words is "eighty-three billion, four hundred twenty-five million, nine hundred twenty-five thousand, ninety-one".