203426388023040 has 576 divisors, whose sum is σ = 888469110144000. Its totient is φ = 42920731754496.

The previous prime is 203426388023029. The next prime is 203426388023059. The reversal of 203426388023040 is 40320883624302.

203426388023040 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 2 + 638 + 8 + 0 + 2 + 3 + 0 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29196690 + ... + 35486609.

It is an arithmetic number, because the mean of its divisors is an integer number (1542481094000).

Almost surely, 2^{203426388023040} is an apocalyptic number.

203426388023040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203426388023040 is an abundant number, since it is smaller than the sum of its proper divisors (685042722120960).

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

203426388023040 is a wasteful number, since it uses less digits than its factorization.

203426388023040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64683349 (or 64683329 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 45.

The spelling of 203426388023040 in words is "two hundred three trillion, four hundred twenty-six billion, three hundred eighty-eight million, twenty-three thousand, forty".