1423769861 has 8 divisors (see below), whose sum is σ = 1459075200. Its totient is φ = 1388564352.

The previous prime is 1423769849. The next prime is 1423769863. The reversal of 1423769861 is 1689673241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1423769861 - 2⁶ = 1423769797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423769863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4340 + ... + 53538.

It is an arithmetic number, because the mean of its divisors is an integer number (182384400).

Almost surely, 2^1423769861 is an apocalyptic number.

It is an amenable number.

1423769861 is a deficient number, since it is larger than the sum of its proper divisors (35305339).

1423769861 is an equidigital number, since it uses as much as digits as its factorization.

1423769861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49915.

The product of its digits is 435456, while the sum is 47.

The square root of 1423769861 is about 37732.8750693609. The cubic root of 1423769861 is about 1124.9846545397.

The spelling of 1423769861 in words is "one billion, four hundred twenty-three million, seven hundred sixty-nine thousand, eight hundred sixty-one".