1421277736770 has 48 divisors (see below), whose sum is σ = 3822747023160. Its totient is φ = 365938175232.

The previous prime is 1421277736757. The next prime is 1421277736817. The reversal of 1421277736770 is 776377721241.

1421277736770 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 277 + 7 + 367 + 7 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1412506103121 + 8771633649 = 1188489^2 + 93657^2 .

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 23 ways as a sum of consecutive naturals, for example, 272272819 + ... + 272278038.

Almost surely, 2^{1421277736770} is an apocalyptic number.

1421277736770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421277736770 is an abundant number, since it is smaller than the sum of its proper divisors (2401469286390).

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

1421277736770 is a wasteful number, since it uses less digits than its factorization.

1421277736770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544550899 (or 544550896 counting only the distinct ones).

The product of its (nonzero) digits is 4840416, while the sum is 54.

The spelling of 1421277736770 in words is "one trillion, four hundred twenty-one billion, two hundred seventy-seven million, seven hundred thirty-six thousand, seven hundred seventy".