1263469879 has 8 divisors (see below), whose sum is σ = 1506746880. Its totient is φ = 1035888216.

The previous prime is 1263469877. The next prime is 1263469927. The reversal of 1263469879 is 9789643621.

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 1263469879 - 2¹ = 1263469877 is a prime.

It is a super-2 number, since 2×1263469879² = 3192712270280549282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263469873) 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, 3923659 + ... + 3923980.

It is an arithmetic number, because the mean of its divisors is an integer number (188343360).

Almost surely, 2^1263469879 is an apocalyptic number.

1263469879 is a deficient number, since it is larger than the sum of its proper divisors (243277001).

1263469879 is an equidigital number, since it uses as much as digits as its factorization.

1263469879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7847669.

The product of its digits is 3919104, while the sum is 55.

The square root of 1263469879 is about 35545.3214783606. The cubic root of 1263469879 is about 1081.0728590646.

The spelling of 1263469879 in words is "one billion, two hundred sixty-three million, four hundred sixty-nine thousand, eight hundred seventy-nine".