721848370151 has 2 divisors, whose sum is σ = 721848370152. Its totient is φ = 721848370150.

The previous prime is 721848370141. The next prime is 721848370183. The reversal of 721848370151 is 151073848127.

It is a weak prime.

It is an emirp because it is prime and its reverse (151073848127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 721848370151 - 2¹⁴ = 721848353767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 721848370096 and 721848370105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (721848370121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360924185075 + 360924185076.

It is an arithmetic number, because the mean of its divisors is an integer number (360924185076).

Almost surely, 2^721848370151 is an apocalyptic number.

721848370151 is a deficient number, since it is larger than the sum of its proper divisors (1).

721848370151 is an equidigital number, since it uses as much as digits as its factorization.

721848370151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 376320, while the sum is 47.

The spelling of 721848370151 in words is "seven hundred twenty-one billion, eight hundred forty-eight million, three hundred seventy thousand, one hundred fifty-one".