28193492151 has 32 divisors (see below), whose sum is σ = 45665164800. Its totient is φ = 17049493440.

The previous prime is 28193492143. The next prime is 28193492183. The reversal of 28193492151 is 15129439182.

28193492151 is a `hidden beast` number, since 2 + 8 + 1 + 9 + 3 + 492 + 151 = 666.

It is not a de Polignac number, because 28193492151 - 2³ = 28193492143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28193492097 and 28193492106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28193492111) 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, 31870 + ... + 239588.

It is an arithmetic number, because the mean of its divisors is an integer number (1427036400).

Almost surely, 2^28193492151 is an apocalyptic number.

28193492151 is a deficient number, since it is larger than the sum of its proper divisors (17471672649).

28193492151 is a wasteful number, since it uses less digits than its factorization.

28193492151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208196 (or 208190 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

It can be divided in two parts, 2819349 and 2151, that added together give a triangular number (2821500 = T₂₃₇₅).

The spelling of 28193492151 in words is "twenty-eight billion, one hundred ninety-three million, four hundred ninety-two thousand, one hundred fifty-one".