69732421961 has 8 divisors (see below), whose sum is σ = 72598140744. Its totient is φ = 66918337920.

The previous prime is 69732421931. The next prime is 69732422041. The reversal of 69732421961 is 16912423796.

It can be written as a sum of positive squares in 4 ways, for example, as 47963190025 + 21769231936 = 219005^2 + 147544^2 .

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 69732421961 - 2¹⁰ = 69732420937 is a prime.

It is a super-2 number, since 2×69732421961² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69732421931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12905930 + ... + 12911331.

It is an arithmetic number, because the mean of its divisors is an integer number (9074767593).

Almost surely, 2^69732421961 is an apocalyptic number.

It is an amenable number.

69732421961 is a deficient number, since it is larger than the sum of its proper divisors (2865718783).

69732421961 is a wasteful number, since it uses less digits than its factorization.

69732421961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25817371.

The product of its digits is 979776, while the sum is 50.

The spelling of 69732421961 in words is "sixty-nine billion, seven hundred thirty-two million, four hundred twenty-one thousand, nine hundred sixty-one".