145808784874 has 8 divisors (see below), whose sum is σ = 219425599008. Its totient is φ = 72666918540.

The previous prime is 145808784851. The next prime is 145808784917. The reversal of 145808784874 is 478487808541.

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

It is a super-2 number, since 2×145808784874² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118736182 + ... + 118737409.

It is an arithmetic number, because the mean of its divisors is an integer number (27428199876).

Almost surely, 2^145808784874 is an apocalyptic number.

145808784874 is a deficient number, since it is larger than the sum of its proper divisors (73616814134).

145808784874 is a wasteful number, since it uses less digits than its factorization.

145808784874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237473900.

The product of its (nonzero) digits is 64225280, while the sum is 64.

The spelling of 145808784874 in words is "one hundred forty-five billion, eight hundred eight million, seven hundred eighty-four thousand, eight hundred seventy-four".