47921902018531 has 2 divisors, whose sum is σ = 47921902018532. Its totient is φ = 47921902018530.

The previous prime is 47921902018499. The next prime is 47921902018597. The reversal of 47921902018531 is 13581020912974.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47921902018531 - 2⁵ = 47921902018499 is a prime.

It is a super-2 number, since 2×47921902018531² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47921909018531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23960951009265 + 23960951009266.

It is an arithmetic number, because the mean of its divisors is an integer number (23960951009266).

Almost surely, 2^{47921902018531} is an apocalyptic number.

47921902018531 is a deficient number, since it is larger than the sum of its proper divisors (1).

47921902018531 is an equidigital number, since it uses as much as digits as its factorization.

47921902018531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 47921902018531 in words is "forty-seven trillion, nine hundred twenty-one billion, nine hundred two million, eighteen thousand, five hundred thirty-one".