48721778122556 has 48 divisors (see below), whose sum is σ = 106306060503552. Its totient is φ = 18981796824000.

The previous prime is 48721778122513. The next prime is 48721778122573. The reversal of 48721778122556 is 65522187712784.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 48721778122492 and 48721778122501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5261705 + ... + 11186111.

It is an arithmetic number, because the mean of its divisors is an integer number (2214709593824).

Almost surely, 2^{48721778122556} is an apocalyptic number.

It is an amenable number.

48721778122556 is an abundant number, since it is smaller than the sum of its proper divisors (57584282380996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48721778122556 is a wasteful number, since it uses less digits than its factorization.

48721778122556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5951130 (or 5951128 counting only the distinct ones).

The product of its digits is 105369600, while the sum is 65.

The spelling of 48721778122556 in words is "forty-eight trillion, seven hundred twenty-one billion, seven hundred seventy-eight million, one hundred twenty-two thousand, five hundred fifty-six".