42847157646450 has 72 divisors (see below), whose sum is σ = 115119568008900. Its totient is φ = 11425557559680.

The previous prime is 42847157646437. The next prime is 42847157646457. The reversal of 42847157646450 is 5464675174824.

42847157646450 is a `hidden beast` number, since 4 + 2 + 8 + 4 + 7 + 1 + 576 + 4 + 6 + 4 + 50 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 24275910389481 + 18571247256969 = 4927059^2 + 4309437^2 .

It is not an unprimeable number, because it can be changed into a prime (42847157646457) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13362396 + ... + 16255704.

Almost surely, 2^{42847157646450} is an apocalyptic number.

42847157646450 is an abundant number, since it is smaller than the sum of its proper divisors (72272410362450).

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

42847157646450 is a wasteful number, since it uses less digits than its factorization.

42847157646450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2926236 (or 2926228 counting only the distinct ones).

The product of its (nonzero) digits is 180633600, while the sum is 63.

The spelling of 42847157646450 in words is "forty-two trillion, eight hundred forty-seven billion, one hundred fifty-seven million, six hundred forty-six thousand, four hundred fifty".