145471778330 has 32 divisors (see below), whose sum is σ = 262955973888. Its totient is φ = 57942993600.

The previous prime is 145471778329. The next prime is 145471778357. The reversal of 145471778330 is 33877174541.

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, 5436464 + ... + 5463156.

It is an arithmetic number, because the mean of its divisors is an integer number (8217374184).

Almost surely, 2^145471778330 is an apocalyptic number.

145471778330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145471778330 is a deficient number, since it is larger than the sum of its proper divisors (117484195558).

145471778330 is a wasteful number, since it uses less digits than its factorization.

145471778330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28982.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 145471778330 in words is "one hundred forty-five billion, four hundred seventy-one million, seven hundred seventy-eight thousand, three hundred thirty".