189781628058 has 48 divisors (see below), whose sum is σ = 451999053792. Its totient is φ = 57070572000.

The previous prime is 189781628053. The next prime is 189781628063. The reversal of 189781628058 is 850826187981.

It is an interprime number because it is at equal distance from previous prime (189781628053) and next prime (189781628063).

It is a super-3 number, since 3×189781628058³ (a number of 35 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 189781627986 and 189781628004.

It is not an unprimeable number, because it can be changed into a prime (189781628053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3632433 + ... + 3684308.

It is an arithmetic number, because the mean of its divisors is an integer number (9416646954).

Almost surely, 2^189781628058 is an apocalyptic number.

189781628058 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

189781628058 is an abundant number, since it is smaller than the sum of its proper divisors (262217425734).

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

189781628058 is a wasteful number, since it uses less digits than its factorization.

189781628058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7316891 (or 7316888 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 63.

The spelling of 189781628058 in words is "one hundred eighty-nine billion, seven hundred eighty-one million, six hundred twenty-eight thousand, fifty-eight".