124427764401 has 4 divisors (see below), whose sum is σ = 165903685872. Its totient is φ = 82951842932.

The previous prime is 124427764399. The next prime is 124427764427. The reversal of 124427764401 is 104467724421.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 104467724421 = 3 ⋅34822574807.

It is a cyclic number.

It is not a de Polignac number, because 124427764401 - 2¹ = 124427764399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124427764481) 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, 20737960731 + ... + 20737960736.

It is an arithmetic number, because the mean of its divisors is an integer number (41475921468).

Almost surely, 2^124427764401 is an apocalyptic number.

It is an amenable number.

124427764401 is a deficient number, since it is larger than the sum of its proper divisors (41475921471).

124427764401 is an equidigital number, since it uses as much as digits as its factorization.

124427764401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41475921470.

The product of its (nonzero) digits is 301056, while the sum is 42.

The spelling of 124427764401 in words is "one hundred twenty-four billion, four hundred twenty-seven million, seven hundred sixty-four thousand, four hundred one".