147781445938 has 32 divisors (see below), whose sum is σ = 256350251520. Its totient is φ = 62585369280.

The previous prime is 147781445923. The next prime is 147781445947. The reversal of 147781445938 is 839544187741.

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, 439383 + ... + 699013.

It is an arithmetic number, because the mean of its divisors is an integer number (8010945360).

Almost surely, 2^147781445938 is an apocalyptic number.

147781445938 is a deficient number, since it is larger than the sum of its proper divisors (108568805582).

147781445938 is a wasteful number, since it uses less digits than its factorization.

147781445938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260122.

The product of its digits is 27095040, while the sum is 61.

The spelling of 147781445938 in words is "one hundred forty-seven billion, seven hundred eighty-one million, four hundred forty-five thousand, nine hundred thirty-eight".