69465725261 has 4 divisors (see below), whose sum is σ = 73551944412. Its totient is φ = 65379506112.

The previous prime is 69465725249. The next prime is 69465725299. The reversal of 69465725261 is 16252756496.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26779686025 + 42686039236 = 163645^2 + 206606^2 .

It is a cyclic number.

It is not a de Polignac number, because 69465725261 - 2¹⁸ = 69465463117 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 (69465725761) 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, 2043109550 + ... + 2043109583.

It is an arithmetic number, because the mean of its divisors is an integer number (18387986103).

Almost surely, 2^69465725261 is an apocalyptic number.

It is an amenable number.

69465725261 is a deficient number, since it is larger than the sum of its proper divisors (4086219151).

69465725261 is a wasteful number, since it uses less digits than its factorization.

69465725261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4086219150.

The product of its digits is 5443200, while the sum is 53.

The spelling of 69465725261 in words is "sixty-nine billion, four hundred sixty-five million, seven hundred twenty-five thousand, two hundred sixty-one".