42615776340 has 36 divisors (see below), whose sum is σ = 129267855444. Its totient is φ = 11364206976.

The previous prime is 42615776323. The next prime is 42615776347. The reversal of 42615776340 is 4367751624.

42615776340 is a `hidden beast` number, since 4 + 2 + 6 + 1 + 5 + 7 + 7 + 634 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24011361936 + 18604414404 = 154956^2 + 136398^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×42615776340² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42615776347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118376977 + ... + 118377336.

Almost surely, 2^42615776340 is an apocalyptic number.

It is an amenable number.

42615776340 is an abundant number, since it is smaller than the sum of its proper divisors (86652079104).

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

42615776340 is a wasteful number, since it uses less digits than its factorization.

42615776340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236754328 (or 236754323 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 42615776340 in words is "forty-two billion, six hundred fifteen million, seven hundred seventy-six thousand, three hundred forty".