1421107178404 has 27 divisors (see below), whose sum is σ = 2493408983457. Its totient is φ = 708709407408.

The previous prime is 1421107178389. The next prime is 1421107178431. The reversal of 1421107178404 is 4048717011241.

The square root of 1421107178404 is 1192102.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 818123868004 + 602983310400 = 904502^2 + 776520^2 .

It is a super-2 number, since 2×1421107178404² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1714242262 + ... + 1714243090.

Almost surely, 2^{1421107178404} is an apocalyptic number.

1421107178404 is the 1192102-nd square number.

It is an amenable number.

1421107178404 is a deficient number, since it is larger than the sum of its proper divisors (1072301805053).

1421107178404 is an frugal number, since it uses more digits than its factorization.

1421107178404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3100 (or 1550 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 40.

The spelling of 1421107178404 in words is "one trillion, four hundred twenty-one billion, one hundred seven million, one hundred seventy-eight thousand, four hundred four".