69740371049 has 4 divisors (see below), whose sum is σ = 72145211460. Its totient is φ = 67335530640.

The previous prime is 69740370929. The next prime is 69740371067. The reversal of 69740371049 is 94017304796.

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 25574406400 + 44165964649 = 159920^2 + 210157^2 .

It is a cyclic number.

It is not a de Polignac number, because 69740371049 - 2³⁶ = 1020894313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69740370988 and 69740371006.

It is not an unprimeable number, because it can be changed into a prime (69740371069) 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, 1202420162 + ... + 1202420219.

It is an arithmetic number, because the mean of its divisors is an integer number (18036302865).

Almost surely, 2^69740371049 is an apocalyptic number.

It is an amenable number.

69740371049 is a deficient number, since it is larger than the sum of its proper divisors (2404840411).

69740371049 is a wasteful number, since it uses less digits than its factorization.

69740371049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404840410.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 69740371049 in words is "sixty-nine billion, seven hundred forty million, three hundred seventy-one thousand, forty-nine".