1381354191078 has 64 divisors (see below), whose sum is σ = 2915859962880. Its totient is φ = 435056378400.

The previous prime is 1381354191037. The next prime is 1381354191131. The reversal of 1381354191078 is 8701914531831.

It is a self number, because there is not a number n which added to its sum of digits gives 1381354191078.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101362101 + ... + 101375727.

It is an arithmetic number, because the mean of its divisors is an integer number (45560311920).

Almost surely, 2^{1381354191078} is an apocalyptic number.

1381354191078 is an abundant number, since it is smaller than the sum of its proper divisors (1534505771802).

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

1381354191078 is a wasteful number, since it uses less digits than its factorization.

1381354191078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15953.

The product of its (nonzero) digits is 725760, while the sum is 51.

The spelling of 1381354191078 in words is "one trillion, three hundred eighty-one billion, three hundred fifty-four million, one hundred ninety-one thousand, seventy-eight".