28390501941 has 8 divisors (see below), whose sum is σ = 37866894240. Its totient is φ = 18920555472.

The previous prime is 28390501849. The next prime is 28390501957. The reversal of 28390501941 is 14910509382.

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

It is not a de Polignac number, because 28390501941 - 2²¹ = 28388404789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28390501893 and 28390501902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28390501241) 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, 1601170 + ... + 1618803.

It is an arithmetic number, because the mean of its divisors is an integer number (4733361780).

Almost surely, 2^28390501941 is an apocalyptic number.

It is an amenable number.

28390501941 is a deficient number, since it is larger than the sum of its proper divisors (9476392299).

28390501941 is a wasteful number, since it uses less digits than its factorization.

28390501941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222915.

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 28390501941 in words is "twenty-eight billion, three hundred ninety million, five hundred one thousand, nine hundred forty-one".