143477381377 has 4 divisors (see below), whose sum is σ = 156520779696. Its totient is φ = 130433983060.

The previous prime is 143477381329. The next prime is 143477381381. The reversal of 143477381377 is 773183774341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143477381377 is a prime.

It is a super-2 number, since 2×143477381377² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143477381077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6521699143 + ... + 6521699164.

It is an arithmetic number, because the mean of its divisors is an integer number (39130194924).

Almost surely, 2^143477381377 is an apocalyptic number.

It is an amenable number.

143477381377 is a deficient number, since it is larger than the sum of its proper divisors (13043398319).

143477381377 is a wasteful number, since it uses less digits than its factorization.

143477381377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13043398318.

The product of its digits is 8297856, while the sum is 55.

The spelling of 143477381377 in words is "one hundred forty-three billion, four hundred seventy-seven million, three hundred eighty-one thousand, three hundred seventy-seven".