158273545788 has 36 divisors (see below), whose sum is σ = 400172238648. Its totient is φ = 52745731680.

The previous prime is 158273545777. The next prime is 158273545823. The reversal of 158273545788 is 887545372851.

158273545788 is a `hidden beast` number, since 1 + 5 + 8 + 2 + 7 + 3 + 54 + 578 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×158273545788² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 345258 + ... + 660113.

It is an arithmetic number, because the mean of its divisors is an integer number (11115895518).

Almost surely, 2^158273545788 is an apocalyptic number.

158273545788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

158273545788 is an abundant number, since it is smaller than the sum of its proper divisors (241898692860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158273545788 is a wasteful number, since it uses less digits than its factorization.

158273545788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009754 (or 1009749 counting only the distinct ones).

The product of its digits is 75264000, while the sum is 63.

The spelling of 158273545788 in words is "one hundred fifty-eight billion, two hundred seventy-three million, five hundred forty-five thousand, seven hundred eighty-eight".