148193855377 has 4 divisors (see below), whose sum is σ = 149360736256. Its totient is φ = 147026974500.

The previous prime is 148193855291. The next prime is 148193855389. The reversal of 148193855377 is 773558391841.

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 148193855377 - 2¹⁹ = 148193331089 is a prime.

It is a super-2 number, since 2×148193855377² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148193852377) 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, 583440249 + ... + 583440502.

It is an arithmetic number, because the mean of its divisors is an integer number (37340184064).

Almost surely, 2^148193855377 is an apocalyptic number.

148193855377 is the 222257-th hex number.

It is an amenable number.

148193855377 is a deficient number, since it is larger than the sum of its proper divisors (1166880879).

148193855377 is a wasteful number, since it uses less digits than its factorization.

148193855377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166880878.

The product of its digits is 25401600, while the sum is 61.

The spelling of 148193855377 in words is "one hundred forty-eight billion, one hundred ninety-three million, eight hundred fifty-five thousand, three hundred seventy-seven".