188620142954 has 4 divisors (see below), whose sum is σ = 282930214434. Its totient is φ = 94310071476.

The previous prime is 188620142939. The next prime is 188620142981. The reversal of 188620142954 is 459241026881.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 120745825225 + 67874317729 = 347485^2 + 260527^2 .

It is a super-3 number, since 3×188620142954³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47155035737 + ... + 47155035740.

Almost surely, 2^188620142954 is an apocalyptic number.

188620142954 is a deficient number, since it is larger than the sum of its proper divisors (94310071480).

188620142954 is an equidigital number, since it uses as much as digits as its factorization.

188620142954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94310071479.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 188620142954 in words is "one hundred eighty-eight billion, six hundred twenty million, one hundred forty-two thousand, nine hundred fifty-four".