1387976334630 has 32 divisors (see below), whose sum is σ = 3408611652864. Its totient is φ = 361519417056.

The previous prime is 1387976334617. The next prime is 1387976334643. The reversal of 1387976334630 is 364336797831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1387976334617) and next prime (1387976334643).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537974034 + ... + 537976613.

It is an arithmetic number, because the mean of its divisors is an integer number (106519114152).

Almost surely, 2^{1387976334630} is an apocalyptic number.

1387976334630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1387976334630 is an abundant number, since it is smaller than the sum of its proper divisors (2020635318234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1387976334630 is a wasteful number, since it uses less digits than its factorization.

1387976334630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075950700.

The product of its (nonzero) digits is 41150592, while the sum is 60.

The spelling of 1387976334630 in words is "one trillion, three hundred eighty-seven billion, nine hundred seventy-six million, three hundred thirty-four thousand, six hundred thirty".