49471437731 has 2 divisors, whose sum is σ = 49471437732. Its totient is φ = 49471437730.

The previous prime is 49471437721. The next prime is 49471437737. The reversal of 49471437731 is 13773417494.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49471437731 - 2⁶ = 49471437667 is a prime.

It is a super-2 number, since 2×49471437731² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49471437731.

It is not a weakly prime, because it can be changed into another prime (49471437737) 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, 24735718865 + 24735718866.

It is an arithmetic number, because the mean of its divisors is an integer number (24735718866).

Almost surely, 2^49471437731 is an apocalyptic number.

49471437731 is a deficient number, since it is larger than the sum of its proper divisors (1).

49471437731 is an equidigital number, since it uses as much as digits as its factorization.

49471437731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1778112, while the sum is 50.

The spelling of 49471437731 in words is "forty-nine billion, four hundred seventy-one million, four hundred thirty-seven thousand, seven hundred thirty-one".