158828870642 has 32 divisors (see below), whose sum is σ = 260197781760. Its totient is φ = 72269919360.

The previous prime is 158828870639. The next prime is 158828870657. The reversal of 158828870642 is 246078828851.

It is a happy number.

It is a super-2 number, since 2×158828870642² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4650167 + ... + 4684197.

It is an arithmetic number, because the mean of its divisors is an integer number (8131180680).

Almost surely, 2^158828870642 is an apocalyptic number.

158828870642 is a deficient number, since it is larger than the sum of its proper divisors (101368911118).

158828870642 is a wasteful number, since it uses less digits than its factorization.

158828870642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36578.

The product of its (nonzero) digits is 13762560, while the sum is 59.

The spelling of 158828870642 in words is "one hundred fifty-eight billion, eight hundred twenty-eight million, eight hundred seventy thousand, six hundred forty-two".