1889167005 has 24 divisors (see below), whose sum is σ = 3572244000. Its totient is φ = 915959520.

The previous prime is 1889166997. The next prime is 1889167013. The reversal of 1889167005 is 5007619881.

It is an interprime number because it is at equal distance from previous prime (1889166997) and next prime (1889167013).

It is not a de Polignac number, because 1889167005 - 2³ = 1889166997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1907755 + ... + 1908744.

It is an arithmetic number, because the mean of its divisors is an integer number (148843500).

Almost surely, 2^1889167005 is an apocalyptic number.

1889167005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1889167005 is a deficient number, since it is larger than the sum of its proper divisors (1683076995).

1889167005 is a wasteful number, since it uses less digits than its factorization.

1889167005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3816521 (or 3816518 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The square root of 1889167005 is about 43464.5488300523. The cubic root of 1889167005 is about 1236.2039225074.

The spelling of 1889167005 in words is "one billion, eight hundred eighty-nine million, one hundred sixty-seven thousand, five".