69406429401 has 27 divisors (see below), whose sum is σ = 101148649693. Its totient is φ = 45861550080.

The previous prime is 69406429399. The next prime is 69406429441. The reversal of 69406429401 is 10492460496.

The square root of 69406429401 is 263451.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 19330731225 + 50075698176 = 139035^2 + 223776^2 .

It is not a de Polignac number, because 69406429401 - 2¹ = 69406429399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69406429441) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 108278041 + ... + 108278681.

Almost surely, 2^69406429401 is an apocalyptic number.

69406429401 is the 263451-st square number.

69406429401 is the 131726-th centered octagonal number.

It is an amenable number.

69406429401 is a deficient number, since it is larger than the sum of its proper divisors (31742220292).

69406429401 is an frugal number, since it uses more digits than its factorization.

69406429401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562 (or 781 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

Adding to 69406429401 its reverse (10492460496), we get a palindrome (79898889897).

The spelling of 69406429401 in words is "sixty-nine billion, four hundred six million, four hundred twenty-nine thousand, four hundred one".