5151205100072 has 8 divisors (see below), whose sum is σ = 9658509562650. Its totient is φ = 2575602550032.

The previous prime is 5151205100051. The next prime is 5151205100113. The reversal of 5151205100072 is 2700015021515.

It can be written as a sum of positive squares in only one way, i.e., 5130288420196 + 20916679876 = 2265014^2 + 144626^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321950318747 + ... + 321950318762.

Almost surely, 2^{5151205100072} is an apocalyptic number.

It is an amenable number.

5151205100072 is a deficient number, since it is larger than the sum of its proper divisors (4507304462578).

5151205100072 is a wasteful number, since it uses less digits than its factorization.

5151205100072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643900637515 (or 643900637511 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 29.

The spelling of 5151205100072 in words is "five trillion, one hundred fifty-one billion, two hundred five million, one hundred thousand, seventy-two".