1916147475 has 48 divisors (see below), whose sum is σ = 3840051840. Its totient is φ = 929037600.

The previous prime is 1916147407. The next prime is 1916147521. The reversal of 1916147475 is 5747416191.

1916147475 is a `hidden beast` number, since 19 + 161 + 4 + 7 + 475 = 666.

It is not a de Polignac number, because 1916147475 - 2¹² = 1916143379 is a prime.

It is a super-2 number, since 2×1916147475² = 7343242291897751250, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1916147475.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121609 + ... + 136458.

It is an arithmetic number, because the mean of its divisors is an integer number (80001080).

Almost surely, 2^1916147475 is an apocalyptic number.

1916147475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1916147475 is an abundant number, since it is smaller than the sum of its proper divisors (1923904365).

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

1916147475 is a wasteful number, since it uses less digits than its factorization.

1916147475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258097 (or 258086 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 1916147475 is about 43773.8218002495. The cubic root of 1916147475 is about 1242.0611477748.

The spelling of 1916147475 in words is "one billion, nine hundred sixteen million, one hundred forty-seven thousand, four hundred seventy-five".