1377224572858 has 4 divisors (see below), whose sum is σ = 2065836859290. Its totient is φ = 688612286428.

The previous prime is 1377224572811. The next prime is 1377224572879. The reversal of 1377224572858 is 8582754227731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1287310352409 + 89914220449 = 1134597^2 + 299857^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1377224572796 and 1377224572805.

It is an unprimeable number.

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, 344306143213 + ... + 344306143216.

Almost surely, 2^{1377224572858} is an apocalyptic number.

1377224572858 is a deficient number, since it is larger than the sum of its proper divisors (688612286432).

1377224572858 is an equidigital number, since it uses as much as digits as its factorization.

1377224572858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688612286431.

The product of its digits is 52684800, while the sum is 61.

The spelling of 1377224572858 in words is "one trillion, three hundred seventy-seven billion, two hundred twenty-four million, five hundred seventy-two thousand, eight hundred fifty-eight".