28611907214 has 32 divisors (see below), whose sum is σ = 47365451136. Its totient is φ = 12854314720.

The previous prime is 28611907211. The next prime is 28611907217. The reversal of 28611907214 is 41270911682.

It is an interprime number because it is at equal distance from previous prime (28611907211) and next prime (28611907217).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28611907211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1029104 + ... + 1056540.

It is an arithmetic number, because the mean of its divisors is an integer number (1480170348).

Almost surely, 2^28611907214 is an apocalyptic number.

28611907214 is a deficient number, since it is larger than the sum of its proper divisors (18753543922).

28611907214 is a wasteful number, since it uses less digits than its factorization.

28611907214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28000.

The product of its (nonzero) digits is 48384, while the sum is 41.

The spelling of 28611907214 in words is "twenty-eight billion, six hundred eleven million, nine hundred seven thousand, two hundred fourteen".