28898031958995 has 32 divisors (see below), whose sum is σ = 47888923406400. Its totient is φ = 14862875134464.

The previous prime is 28898031958993. The next prime is 28898031959009. The reversal of 28898031958995 is 59985913089882.

It is a happy number.

It is not a de Polignac number, because 28898031958995 - 2¹ = 28898031958993 is a prime.

It is a super-2 number, since 2×28898031958995² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28898031958993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39707092 + ... + 40428321.

It is an arithmetic number, because the mean of its divisors is an integer number (1496528856450).

Almost surely, 2^{28898031958995} is an apocalyptic number.

28898031958995 is a deficient number, since it is larger than the sum of its proper divisors (18990891447405).

28898031958995 is a wasteful number, since it uses less digits than its factorization.

28898031958995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80136279.

The product of its (nonzero) digits is 4031078400, while the sum is 84.

The spelling of 28898031958995 in words is "twenty-eight trillion, eight hundred ninety-eight billion, thirty-one million, nine hundred fifty-eight thousand, nine hundred ninety-five".