39147039979739 has 2 divisors, whose sum is σ = 39147039979740. Its totient is φ = 39147039979738.

The previous prime is 39147039979699. The next prime is 39147039979777. The reversal of 39147039979739 is 93797993074193.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39147039979739 - 2¹² = 39147039975643 is a prime.

It is not a weakly prime, because it can be changed into another prime (39147039975739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19573519989869 + 19573519989870.

It is an arithmetic number, because the mean of its divisors is an integer number (19573519989870).

Almost surely, 2^{39147039979739} is an apocalyptic number.

39147039979739 is a deficient number, since it is larger than the sum of its proper divisors (1).

39147039979739 is an equidigital number, since it uses as much as digits as its factorization.

39147039979739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2187411156, while the sum is 80.

The spelling of 39147039979739 in words is "thirty-nine trillion, one hundred forty-seven billion, thirty-nine million, nine hundred seventy-nine thousand, seven hundred thirty-nine".