44991432947 has 2 divisors, whose sum is σ = 44991432948. Its totient is φ = 44991432946.

The previous prime is 44991432919. The next prime is 44991432971. The reversal of 44991432947 is 74923419944.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44991432947 - 2¹² = 44991428851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44991432892 and 44991432901.

It is not a weakly prime, because it can be changed into another prime (44991432347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22495716473 + 22495716474.

It is an arithmetic number, because the mean of its divisors is an integer number (22495716474).

Almost surely, 2^44991432947 is an apocalyptic number.

44991432947 is a deficient number, since it is larger than the sum of its proper divisors (1).

44991432947 is an equidigital number, since it uses as much as digits as its factorization.

44991432947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 56.

The spelling of 44991432947 in words is "forty-four billion, nine hundred ninety-one million, four hundred thirty-two thousand, nine hundred forty-seven".