48778537793 has 4 divisors (see below), whose sum is σ = 50899343808. Its totient is φ = 46657731780.

The previous prime is 48778537771. The next prime is 48778537799. The reversal of 48778537793 is 39773587784.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48778537793 - 2¹⁴ = 48778521409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (48778537799) 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, 1060402973 + ... + 1060403018.

It is an arithmetic number, because the mean of its divisors is an integer number (12724835952).

Almost surely, 2^48778537793 is an apocalyptic number.

It is an amenable number.

48778537793 is a deficient number, since it is larger than the sum of its proper divisors (2120806015).

48778537793 is a wasteful number, since it uses less digits than its factorization.

48778537793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120806014.

The product of its digits is 248935680, while the sum is 68.

The spelling of 48778537793 in words is "forty-eight billion, seven hundred seventy-eight million, five hundred thirty-seven thousand, seven hundred ninety-three".