145871894519 has 8 divisors (see below), whose sum is σ = 157250388960. Its totient is φ = 134515911456.

The previous prime is 145871894507. The next prime is 145871894521. The reversal of 145871894519 is 915498178541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145871894519 - 2⁸ = 145871894263 is a prime.

It is a super-2 number, since 2×145871894519² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145871894579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5614379 + ... + 5640300.

It is an arithmetic number, because the mean of its divisors is an integer number (19656298620).

Almost surely, 2^145871894519 is an apocalyptic number.

145871894519 is a deficient number, since it is larger than the sum of its proper divisors (11378494441).

145871894519 is a wasteful number, since it uses less digits than its factorization.

145871894519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11255689.

The product of its digits is 14515200, while the sum is 62.

The spelling of 145871894519 in words is "one hundred forty-five billion, eight hundred seventy-one million, eight hundred ninety-four thousand, five hundred nineteen".