153964479947 has 2 divisors, whose sum is σ = 153964479948. Its totient is φ = 153964479946.

The previous prime is 153964479829. The next prime is 153964480001. The reversal of 153964479947 is 749974469351.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 153964479947 - 2²⁴ = 153947702731 is a prime.

It is a super-3 number, since 3×153964479947³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (153964479247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76982239973 + 76982239974.

It is an arithmetic number, because the mean of its divisors is an integer number (76982239974).

Almost surely, 2^153964479947 is an apocalyptic number.

153964479947 is a deficient number, since it is larger than the sum of its proper divisors (1).

153964479947 is an equidigital number, since it uses as much as digits as its factorization.

153964479947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 205752960, while the sum is 68.

The spelling of 153964479947 in words is "one hundred fifty-three billion, nine hundred sixty-four million, four hundred seventy-nine thousand, nine hundred forty-seven".