47157303449 has 2 divisors, whose sum is σ = 47157303450. Its totient is φ = 47157303448.

The previous prime is 47157303433. The next prime is 47157303467. The reversal of 47157303449 is 94430375174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45479827600 + 1677475849 = 213260^2 + 40957^2 .

It is a cyclic number.

It is not a de Polignac number, because 47157303449 - 2⁴ = 47157303433 is a prime.

It is a super-2 number, since 2×47157303449² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47157303409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23578651724 + 23578651725.

It is an arithmetic number, because the mean of its divisors is an integer number (23578651725).

Almost surely, 2^47157303449 is an apocalyptic number.

It is an amenable number.

47157303449 is a deficient number, since it is larger than the sum of its proper divisors (1).

47157303449 is an equidigital number, since it uses as much as digits as its factorization.

47157303449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 47157303449 in words is "forty-seven billion, one hundred fifty-seven million, three hundred three thousand, four hundred forty-nine".