42721553007 has 16 divisors (see below), whose sum is σ = 72332788480. Its totient is φ = 24412315896.

The previous prime is 42721552967. The next prime is 42721553009. The reversal of 42721553007 is 70035512724.

42721553007 is a `hidden beast` number, since 42 + 72 + 15 + 530 + 0 + 7 = 666.

It is not a de Polignac number, because 42721553007 - 2¹¹ = 42721550959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42721553009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113019793 + ... + 113020170.

It is an arithmetic number, because the mean of its divisors is an integer number (4520799280).

Almost surely, 2^42721553007 is an apocalyptic number.

42721553007 is a deficient number, since it is larger than the sum of its proper divisors (29611235473).

42721553007 is a wasteful number, since it uses less digits than its factorization.

42721553007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226039979 (or 226039973 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The spelling of 42721553007 in words is "forty-two billion, seven hundred twenty-one million, five hundred fifty-three thousand, seven".