42400060957 has 2 divisors, whose sum is σ = 42400060958. Its totient is φ = 42400060956.

The previous prime is 42400060949. The next prime is 42400061017. The reversal of 42400060957 is 75906000424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27860283396 + 14539777561 = 166914^2 + 120581^2 .

It is a cyclic number.

It is not a de Polignac number, because 42400060957 - 2³ = 42400060949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42400060657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21200030478 + 21200030479.

It is an arithmetic number, because the mean of its divisors is an integer number (21200030479).

Almost surely, 2^42400060957 is an apocalyptic number.

It is an amenable number.

42400060957 is a deficient number, since it is larger than the sum of its proper divisors (1).

42400060957 is an equidigital number, since it uses as much as digits as its factorization.

42400060957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 42400060957 in words is "forty-two billion, four hundred million, sixty thousand, nine hundred fifty-seven".