1421552902750 has 64 divisors (see below), whose sum is σ = 2772193881600. Its totient is φ = 545229792000.

The previous prime is 1421552902717. The next prime is 1421552902753. The reversal of 1421552902750 is 572092551241.

It is a junction number, because it is equal to n+sod(n) for n = 1421552902697 and 1421552902706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421552902753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3346 + ... + 1686154.

It is an arithmetic number, because the mean of its divisors is an integer number (43315529400).

Almost surely, 2^{1421552902750} is an apocalyptic number.

1421552902750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421552902750 is a deficient number, since it is larger than the sum of its proper divisors (1350640978850).

1421552902750 is a wasteful number, since it uses less digits than its factorization.

1421552902750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682966 (or 1682956 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 1421552902750 in words is "one trillion, four hundred twenty-one billion, five hundred fifty-two million, nine hundred two thousand, seven hundred fifty".