48751521786 has 64 divisors (see below), whose sum is σ = 123324042240. Its totient is φ = 14130871920.

The previous prime is 48751521743. The next prime is 48751521799. The reversal of 48751521786 is 68712515784.

48751521786 is a `hidden beast` number, since 48 + 7 + 5 + 1 + 521 + 78 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1770540 + ... + 1797863.

It is an arithmetic number, because the mean of its divisors is an integer number (1926938160).

Almost surely, 2^48751521786 is an apocalyptic number.

48751521786 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

48751521786 is an abundant number, since it is smaller than the sum of its proper divisors (74572520454).

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

48751521786 is a wasteful number, since it uses less digits than its factorization.

48751521786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3568448 (or 3568442 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 54.

The spelling of 48751521786 in words is "forty-eight billion, seven hundred fifty-one million, five hundred twenty-one thousand, seven hundred eighty-six".