145978144764 has 48 divisors (see below), whose sum is σ = 361075121568. Its totient is φ = 45743321088.

The previous prime is 145978144759. The next prime is 145978144771. The reversal of 145978144764 is 467441879541.

145978144764 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 145978144698 and 145978144707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245437 + ... + 593460.

It is an arithmetic number, because the mean of its divisors is an integer number (7522398366).

Almost surely, 2^145978144764 is an apocalyptic number.

It is an amenable number.

145978144764 is an abundant number, since it is smaller than the sum of its proper divisors (215096976804).

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

145978144764 is a wasteful number, since it uses less digits than its factorization.

145978144764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839774 (or 839772 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 60.

The spelling of 145978144764 in words is "one hundred forty-five billion, nine hundred seventy-eight million, one hundred forty-four thousand, seven hundred sixty-four".