72101015953 has 2 divisors, whose sum is σ = 72101015954. Its totient is φ = 72101015952.

The previous prime is 72101015951. The next prime is 72101016017. The reversal of 72101015953 is 35951010127.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72064328704 + 36687249 = 268448^2 + 6057^2 .

It is a cyclic number.

It is not a de Polignac number, because 72101015953 - 2¹ = 72101015951 is a prime.

Together with 72101015951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (72101015951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36050507976 + 36050507977.

It is an arithmetic number, because the mean of its divisors is an integer number (36050507977).

Almost surely, 2^72101015953 is an apocalyptic number.

It is an amenable number.

72101015953 is a deficient number, since it is larger than the sum of its proper divisors (1).

72101015953 is an equidigital number, since it uses as much as digits as its factorization.

72101015953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 34.

The spelling of 72101015953 in words is "seventy-two billion, one hundred one million, fifteen thousand, nine hundred fifty-three".