42651771524 has 6 divisors (see below), whose sum is σ = 74640600174. Its totient is φ = 21325885760.

The previous prime is 42651771499. The next prime is 42651771541. The reversal of 42651771524 is 42517715624.

It is a happy number.

42651771524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 41992206400 + 659565124 = 204920^2 + 25682^2 .

It is a super-2 number, since 2×42651771524² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5331471437 + ... + 5331471444.

It is an arithmetic number, because the mean of its divisors is an integer number (12440100029).

Almost surely, 2^42651771524 is an apocalyptic number.

It is an amenable number.

42651771524 is a deficient number, since it is larger than the sum of its proper divisors (31988828650).

42651771524 is a wasteful number, since it uses less digits than its factorization.

42651771524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10662942885 (or 10662942883 counting only the distinct ones).

The product of its digits is 470400, while the sum is 44.

The spelling of 42651771524 in words is "forty-two billion, six hundred fifty-one million, seven hundred seventy-one thousand, five hundred twenty-four".