47537204381 has 2 divisors, whose sum is σ = 47537204382. Its totient is φ = 47537204380.

The previous prime is 47537204339. The next prime is 47537204389. The reversal of 47537204381 is 18340273574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33099980356 + 14437224025 = 181934^2 + 120155^2 .

It is a cyclic number.

It is not a de Polignac number, because 47537204381 - 2³⁰ = 46463462557 is a prime.

It is a super-2 number, since 2×47537204381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47537204389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23768602190 + 23768602191.

It is an arithmetic number, because the mean of its divisors is an integer number (23768602191).

Almost surely, 2^47537204381 is an apocalyptic number.

It is an amenable number.

47537204381 is a deficient number, since it is larger than the sum of its proper divisors (1).

47537204381 is an equidigital number, since it uses as much as digits as its factorization.

47537204381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 47537204381 in words is "forty-seven billion, five hundred thirty-seven million, two hundred four thousand, three hundred eighty-one".