420634563950 has 24 divisors (see below), whose sum is σ = 785888741568. Its totient is φ = 167499319680.

The previous prime is 420634563941. The next prime is 420634563977. The reversal of 420634563950 is 59365436024.

It is a junction number, because it is equal to n+sod(n) for n = 420634563895 and 420634563904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18851387 + ... + 18873686.

It is an arithmetic number, because the mean of its divisors is an integer number (32745364232).

Almost surely, 2^420634563950 is an apocalyptic number.

420634563950 is a deficient number, since it is larger than the sum of its proper divisors (365254177618).

420634563950 is a wasteful number, since it uses less digits than its factorization.

420634563950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37725308 (or 37725303 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 47.

Adding to 420634563950 its reverse (59365436024), we get a palindrome (479999999974).

The spelling of 420634563950 in words is "four hundred twenty billion, six hundred thirty-four million, five hundred sixty-three thousand, nine hundred fifty".