633278371157 has 2 divisors, whose sum is σ = 633278371158. Its totient is φ = 633278371156.

The previous prime is 633278371151. The next prime is 633278371169. The reversal of 633278371157 is 751173872336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400251083716 + 233027287441 = 632654^2 + 482729^2 .

It is a cyclic number.

It is not a de Polignac number, because 633278371157 - 2⁶ = 633278371093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 633278371099 and 633278371108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (633278371151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316639185578 + 316639185579.

It is an arithmetic number, because the mean of its divisors is an integer number (316639185579).

Almost surely, 2^633278371157 is an apocalyptic number.

It is an amenable number.

633278371157 is a deficient number, since it is larger than the sum of its proper divisors (1).

633278371157 is an equidigital number, since it uses as much as digits as its factorization.

633278371157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4445280, while the sum is 53.

The spelling of 633278371157 in words is "six hundred thirty-three billion, two hundred seventy-eight million, three hundred seventy-one thousand, one hundred fifty-seven".