145440973377 has 24 divisors (see below), whose sum is σ = 244623098304. Its totient is φ = 81541029024.

The previous prime is 145440973367. The next prime is 145440973397. The reversal of 145440973377 is 773379044541.

It is a happy number.

145440973377 is a `hidden beast` number, since 1 + 4 + 544 + 0 + 97 + 3 + 3 + 7 + 7 = 666.

It is not a de Polignac number, because 145440973377 - 2¹⁰ = 145440972353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145440973357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21775783 + ... + 21782460.

It is an arithmetic number, because the mean of its divisors is an integer number (10192629096).

Almost surely, 2^145440973377 is an apocalyptic number.

It is an amenable number.

145440973377 is a deficient number, since it is larger than the sum of its proper divisors (99182124927).

145440973377 is a wasteful number, since it uses less digits than its factorization.

145440973377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43558309 (or 43558306 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 54.

The spelling of 145440973377 in words is "one hundred forty-five billion, four hundred forty million, nine hundred seventy-three thousand, three hundred seventy-seven".