403421564345642 has 24 divisors (see below), whose sum is σ = 644612842012320. Its totient is φ = 189316624560320.

The previous prime is 403421564345627. The next prime is 403421564345699. The reversal of 403421564345642 is 246543465124304.

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, 971883284 + ... + 972298287.

It is an arithmetic number, because the mean of its divisors is an integer number (26858868417180).

Almost surely, 2^{403421564345642} is an apocalyptic number.

403421564345642 is a deficient number, since it is larger than the sum of its proper divisors (241191277666678).

403421564345642 is a wasteful number, since it uses less digits than its factorization.

403421564345642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944181966 (or 1944181949 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 53.

The spelling of 403421564345642 in words is "four hundred three trillion, four hundred twenty-one billion, five hundred sixty-four million, three hundred forty-five thousand, six hundred forty-two".