1388201250007 has 16 divisors (see below), whose sum is σ = 1637893359648. Its totient is φ = 1159924423680.

The previous prime is 1388201249933. The next prime is 1388201250019. The reversal of 1388201250007 is 7000521028831.

It is not a de Polignac number, because 1388201250007 - 2²³ = 1388192861399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388201256007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20798658 + ... + 20865295.

It is an arithmetic number, because the mean of its divisors is an integer number (102368334978).

Almost surely, 2^{1388201250007} is an apocalyptic number.

1388201250007 is a deficient number, since it is larger than the sum of its proper divisors (249692109641).

1388201250007 is a wasteful number, since it uses less digits than its factorization.

1388201250007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41664210.

The product of its (nonzero) digits is 26880, while the sum is 37.

Adding to 1388201250007 its reverse (7000521028831), we get a palindrome (8388722278838).

The spelling of 1388201250007 in words is "one trillion, three hundred eighty-eight billion, two hundred one million, two hundred fifty thousand, seven".