148426923415681 has 4 divisors (see below), whose sum is σ = 148451714957232. Its totient is φ = 148402131874132.

The previous prime is 148426923415621. The next prime is 148426923415703. The reversal of 148426923415681 is 186514329624841.

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 148426923415681 - 2⁷ = 148426923415553 is a prime.

It is a super-2 number, since 2×148426923415681² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148426923415621) 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, 12395761795 + ... + 12395773768.

It is an arithmetic number, because the mean of its divisors is an integer number (37112928739308).

Almost surely, 2^{148426923415681} is an apocalyptic number.

It is an amenable number.

148426923415681 is a deficient number, since it is larger than the sum of its proper divisors (24791541551).

148426923415681 is an equidigital number, since it uses as much as digits as its factorization.

148426923415681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24791541550.

The product of its digits is 79626240, while the sum is 64.

The spelling of 148426923415681 in words is "one hundred forty-eight trillion, four hundred twenty-six billion, nine hundred twenty-three million, four hundred fifteen thousand, six hundred eighty-one".