21407361142 has 8 divisors (see below), whose sum is σ = 33801096600. Its totient is φ = 10140328944.

The previous prime is 21407361103. The next prime is 21407361149. The reversal of 21407361142 is 24116370412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21407361142² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21407361149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281675767 + ... + 281675842.

It is an arithmetic number, because the mean of its divisors is an integer number (4225137075).

Almost surely, 2^21407361142 is an apocalyptic number.

21407361142 is a deficient number, since it is larger than the sum of its proper divisors (12393735458).

21407361142 is a wasteful number, since it uses less digits than its factorization.

21407361142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563351630.

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 21407361142 in words is "twenty-one billion, four hundred seven million, three hundred sixty-one thousand, one hundred forty-two".