538952991947 has 2 divisors, whose sum is σ = 538952991948. Its totient is φ = 538952991946.

The previous prime is 538952991943. The next prime is 538952991977. The reversal of 538952991947 is 749199259835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 538952991947 - 2² = 538952991943 is a prime.

It is not a weakly prime, because it can be changed into another prime (538952991943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269476495973 + 269476495974.

It is an arithmetic number, because the mean of its divisors is an integer number (269476495974).

Almost surely, 2^538952991947 is an apocalyptic number.

538952991947 is a deficient number, since it is larger than the sum of its proper divisors (1).

538952991947 is an equidigital number, since it uses as much as digits as its factorization.

538952991947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 220449600, while the sum is 71.

The spelling of 538952991947 in words is "five hundred thirty-eight billion, nine hundred fifty-two million, nine hundred ninety-one thousand, nine hundred forty-seven".