53381720007 has 64 divisors (see below), whose sum is σ = 100891422720. Its totient is φ = 27085816800.

The previous prime is 53381719969. The next prime is 53381720071. The reversal of 53381720007 is 70002718335.

It is not a de Polignac number, because 53381720007 - 2¹¹ = 53381717959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53381721007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 209169 + ... + 387962.

It is an arithmetic number, because the mean of its divisors is an integer number (1576428480).

Almost surely, 2^53381720007 is an apocalyptic number.

53381720007 is a deficient number, since it is larger than the sum of its proper divisors (47509702713).

53381720007 is a wasteful number, since it uses less digits than its factorization.

53381720007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597201 (or 597195 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The spelling of 53381720007 in words is "fifty-three billion, three hundred eighty-one million, seven hundred twenty thousand, seven".