145471387746 has 32 divisors (see below), whose sum is σ = 293276418048. Its totient is φ = 48101634000.

The previous prime is 145471387727. The next prime is 145471387757. The reversal of 145471387746 is 647783174541.

It is a happy 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, 9327471 + ... + 9343053.

It is an arithmetic number, because the mean of its divisors is an integer number (9164888064).

Almost surely, 2^145471387746 is an apocalyptic number.

145471387746 is an abundant number, since it is smaller than the sum of its proper divisors (147805030302).

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

145471387746 is a wasteful number, since it uses less digits than its factorization.

145471387746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27966.

The product of its digits is 15805440, while the sum is 57.

The spelling of 145471387746 in words is "one hundred forty-five billion, four hundred seventy-one million, three hundred eighty-seven thousand, seven hundred forty-six".