1387626262500 has 288 divisors, whose sum is σ = 4290571385856. Its totient is φ = 348408000000.

The previous prime is 1387626262481. The next prime is 1387626262523. The reversal of 1387626262500 is 52626267831.

It is a self number, because there is not a number n which added to its sum of digits gives 1387626262500.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 42996370 + ... + 43028630.

It is an arithmetic number, because the mean of its divisors is an integer number (14897817312).

Almost surely, 2^{1387626262500} is an apocalyptic number.

1387626262500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1387626262500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2145285692928).

1387626262500 is an abundant number, since it is smaller than the sum of its proper divisors (2902945123356).

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

1387626262500 is a wasteful number, since it uses less digits than its factorization.

1387626262500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32361 (or 32339 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 1387626262500 in words is "one trillion, three hundred eighty-seven billion, six hundred twenty-six million, two hundred sixty-two thousand, five hundred".