148867993870897 has 4 divisors (see below), whose sum is σ = 170134850138176. Its totient is φ = 127601137603620.

The previous prime is 148867993870811. The next prime is 148867993870901. The reversal of 148867993870897 is 798078399768841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148867993870897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148867993850897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10633428133629 + ... + 10633428133642.

It is an arithmetic number, because the mean of its divisors is an integer number (42533712534544).

Almost surely, 2^{148867993870897} is an apocalyptic number.

It is an amenable number.

148867993870897 is a deficient number, since it is larger than the sum of its proper divisors (21266856267279).

148867993870897 is an equidigital number, since it uses as much as digits as its factorization.

148867993870897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21266856267278.

The product of its (nonzero) digits is 73741860864, while the sum is 94.

The spelling of 148867993870897 in words is "one hundred forty-eight trillion, eight hundred sixty-seven billion, nine hundred ninety-three million, eight hundred seventy thousand, eight hundred ninety-seven".