1391141678970 has 32 divisors (see below), whose sum is σ = 3338775470592. Its totient is φ = 370967176512.

The previous prime is 1391141678963. The next prime is 1391141678987. The reversal of 1391141678970 is 798761411931.

It is a self number, because there is not a number n which added to its sum of digits gives 1391141678970.

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, 3625644 + ... + 3990936.

It is an arithmetic number, because the mean of its divisors is an integer number (104336733456).

Almost surely, 2^{1391141678970} is an apocalyptic number.

1391141678970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1391141678970 is an abundant number, since it is smaller than the sum of its proper divisors (1947633791622).

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

1391141678970 is a wasteful number, since it uses less digits than its factorization.

1391141678970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492246.

The product of its (nonzero) digits is 2286144, while the sum is 57.

The spelling of 1391141678970 in words is "one trillion, three hundred ninety-one billion, one hundred forty-one million, six hundred seventy-eight thousand, nine hundred seventy".