158028481972 has 24 divisors (see below), whose sum is σ = 293304477312. Its totient is φ = 74339839200.

The previous prime is 158028481943. The next prime is 158028481981. The reversal of 158028481972 is 279184820851.

158028481972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×158028481972² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14073904 + ... + 14085127.

It is an arithmetic number, because the mean of its divisors is an integer number (12221019888).

Almost surely, 2^158028481972 is an apocalyptic number.

It is an amenable number.

158028481972 is a deficient number, since it is larger than the sum of its proper divisors (135275995340).

158028481972 is a wasteful number, since it uses less digits than its factorization.

158028481972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28159119 (or 28159117 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 55.

It can be divided in two parts, 158028 and 481972, that added together give a square (640000 = 800²).

The spelling of 158028481972 in words is "one hundred fifty-eight billion, twenty-eight million, four hundred eighty-one thousand, nine hundred seventy-two".