1387485646377 has 8 divisors (see below), whose sum is σ = 1853748645600. Its totient is φ = 923106539040.

The previous prime is 1387485646369. The next prime is 1387485646381. The reversal of 1387485646377 is 7736465847831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1387485646377 - 2³ = 1387485646369 is a prime.

It is a super-2 number, since 2×1387485646377² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1387485646387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470971252 + ... + 470974197.

It is an arithmetic number, because the mean of its divisors is an integer number (231718580700).

Almost surely, 2^{1387485646377} is an apocalyptic number.

It is an amenable number.

1387485646377 is a deficient number, since it is larger than the sum of its proper divisors (466262999223).

1387485646377 is an equidigital number, since it uses as much as digits as its factorization.

1387485646377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941945943.

The product of its digits is 568995840, while the sum is 69.

The spelling of 1387485646377 in words is "one trillion, three hundred eighty-seven billion, four hundred eighty-five million, six hundred forty-six thousand, three hundred seventy-seven".