1378120510835 has 16 divisors (see below), whose sum is σ = 1754490777600. Its totient is φ = 1036246097376.

The previous prime is 1378120510787. The next prime is 1378120510843. The reversal of 1378120510835 is 5380150218731.

It is a cyclic number.

It is not a de Polignac number, because 1378120510835 - 2¹² = 1378120506739 is a prime.

It is a super-2 number, since 2×1378120510835² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57100265 + ... + 57124394.

It is an arithmetic number, because the mean of its divisors is an integer number (109655673600).

Almost surely, 2^{1378120510835} is an apocalyptic number.

1378120510835 is a deficient number, since it is larger than the sum of its proper divisors (376370266765).

1378120510835 is a wasteful number, since it uses less digits than its factorization.

1378120510835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114224810.

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 1378120510835 in words is "one trillion, three hundred seventy-eight billion, one hundred twenty million, five hundred ten thousand, eight hundred thirty-five".