147821881507 has 2 divisors, whose sum is σ = 147821881508. Its totient is φ = 147821881506.

The previous prime is 147821881483. The next prime is 147821881541. The reversal of 147821881507 is 705188128741.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 147821881507 - 2¹⁹ = 147821357219 is a prime.

It is not a weakly prime, because it can be changed into another prime (147821881307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73910940753 + 73910940754.

It is an arithmetic number, because the mean of its divisors is an integer number (73910940754).

Almost surely, 2^147821881507 is an apocalyptic number.

147821881507 is a deficient number, since it is larger than the sum of its proper divisors (1).

147821881507 is an equidigital number, since it uses as much as digits as its factorization.

147821881507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1003520, while the sum is 52.

The spelling of 147821881507 in words is "one hundred forty-seven billion, eight hundred twenty-one million, eight hundred eighty-one thousand, five hundred seven".