1381820037470 has 16 divisors (see below), whose sum is σ = 2487307184208. Its totient is φ = 552721100160.

The previous prime is 1381820037469. The next prime is 1381820037497. The reversal of 1381820037470 is 747300281831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17825 + ... + 1662515.

It is an arithmetic number, because the mean of its divisors is an integer number (155456699013).

Almost surely, 2^{1381820037470} is an apocalyptic number.

1381820037470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1381820037470 is a deficient number, since it is larger than the sum of its proper divisors (1105487146738).

1381820037470 is a wasteful number, since it uses less digits than its factorization.

1381820037470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728715.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 1381820037470 in words is "one trillion, three hundred eighty-one billion, eight hundred twenty million, thirty-seven thousand, four hundred seventy".