748421062505820 has 144 divisors (see below), whose sum is σ = 2481965556950880. Its totient is φ = 181041839654400.

The previous prime is 748421062505819. The next prime is 748421062505839. The reversal of 748421062505820 is 28505260124847.

748421062505820 is a `hidden beast` number, since 7 + 4 + 8 + 4 + 2 + 1 + 0 + 6 + 2 + 50 + 582 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 409055155 + ... + 410880714.

It is an arithmetic number, because the mean of its divisors is an integer number (17235871923270).

Almost surely, 2^{748421062505820} is an apocalyptic number.

It is an amenable number.

748421062505820 is an abundant number, since it is smaller than the sum of its proper divisors (1733544494445060).

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

748421062505820 is a wasteful number, since it uses less digits than its factorization.

748421062505820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819936356 (or 819936351 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 54.

The spelling of 748421062505820 in words is "seven hundred forty-eight trillion, four hundred twenty-one billion, sixty-two million, five hundred five thousand, eight hundred twenty".