48970947661 has 4 divisors (see below), whose sum is σ = 49094300572. Its totient is φ = 48847594752.

The previous prime is 48970947629. The next prime is 48970947667. The reversal of 48970947661 is 16674907984.

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 16681014025 + 32289933636 = 129155^2 + 179694^2 .

It is a cyclic number.

It is not a de Polignac number, because 48970947661 - 2⁵ = 48970947629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48970947661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48970947667) 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, 61675860 + ... + 61676653.

It is an arithmetic number, because the mean of its divisors is an integer number (12273575143).

Almost surely, 2^48970947661 is an apocalyptic number.

It is an amenable number.

48970947661 is a deficient number, since it is larger than the sum of its proper divisors (123352911).

48970947661 is a wasteful number, since it uses less digits than its factorization.

48970947661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123352910.

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 48970947661 in words is "forty-eight billion, nine hundred seventy million, nine hundred forty-seven thousand, six hundred sixty-one".