145643379390 has 48 divisors (see below), whose sum is σ = 379199620800. Its totient is φ = 38784200256.

The previous prime is 145643379383. The next prime is 145643379433. The reversal of 145643379390 is 93973346541.

145643379390 is a `hidden beast` number, since 1 + 4 + 56 + 433 + 79 + 3 + 90 = 666.

145643379390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1060645 + ... + 1190064.

It is an arithmetic number, because the mean of its divisors is an integer number (7899992100).

Almost surely, 2^145643379390 is an apocalyptic number.

145643379390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145643379390 is an abundant number, since it is smaller than the sum of its proper divisors (233556241410).

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

145643379390 is a wasteful number, since it uses less digits than its factorization.

145643379390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251441 (or 2251438 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 54.

The spelling of 145643379390 in words is "one hundred forty-five billion, six hundred forty-three million, three hundred seventy-nine thousand, three hundred ninety".