145889373643 has 16 divisors (see below), whose sum is σ = 158799132576. Its totient is φ = 133227406080.

The previous prime is 145889373629. The next prime is 145889373647. The reversal of 145889373643 is 346373988541.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145889373643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145889373647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382048 + ... + 661618.

It is an arithmetic number, because the mean of its divisors is an integer number (9924945786).

Almost surely, 2^145889373643 is an apocalyptic number.

145889373643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

145889373643 is a deficient number, since it is larger than the sum of its proper divisors (12909758933).

145889373643 is a wasteful number, since it uses less digits than its factorization.

145889373643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280014.

The product of its digits is 52254720, while the sum is 61.

The spelling of 145889373643 in words is "one hundred forty-five billion, eight hundred eighty-nine million, three hundred seventy-three thousand, six hundred forty-three".