28735386540158 has 16 divisors (see below), whose sum is σ = 43573155064704. Its totient is φ = 14211416597400.

The previous prime is 28735386540101. The next prime is 28735386540181. The reversal of 28735386540158 is 85104568353782.

It is a happy number.

It is a super-2 number, since 2×28735386540158² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28735386540094 and 28735386540103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103630868 + ... + 103907783.

It is an arithmetic number, because the mean of its divisors is an integer number (2723322191544).

Almost surely, 2^{28735386540158} is an apocalyptic number.

28735386540158 is a deficient number, since it is larger than the sum of its proper divisors (14837768524546).

28735386540158 is a wasteful number, since it uses less digits than its factorization.

28735386540158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207539407.

The product of its (nonzero) digits is 193536000, while the sum is 65.

The spelling of 28735386540158 in words is "twenty-eight trillion, seven hundred thirty-five billion, three hundred eighty-six million, five hundred forty thousand, one hundred fifty-eight".