148901780697 has 4 divisors (see below), whose sum is σ = 198535707600. Its totient is φ = 99267853796.

The previous prime is 148901780683. The next prime is 148901780701. The reversal of 148901780697 is 796087109841.

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 not a de Polignac number, because 148901780697 - 2²⁰ = 148900732121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148901780697.

It is not an unprimeable number, because it can be changed into a prime (148901780647) 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, 24816963447 + ... + 24816963452.

It is an arithmetic number, because the mean of its divisors is an integer number (49633926900).

Almost surely, 2^148901780697 is an apocalyptic number.

It is an amenable number.

148901780697 is a deficient number, since it is larger than the sum of its proper divisors (49633926903).

148901780697 is an equidigital number, since it uses as much as digits as its factorization.

148901780697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49633926902.

The product of its (nonzero) digits is 6096384, while the sum is 60.

The spelling of 148901780697 in words is "one hundred forty-eight billion, nine hundred one million, seven hundred eighty thousand, six hundred ninety-seven".