423537767203240 has 32 divisors (see below), whose sum is σ = 956400264955080. Its totient is φ = 168803499992832.

The previous prime is 423537767203181. The next prime is 423537767203319. The reversal of 423537767203240 is 42302767735324.

It can be written as a sum of positive squares in 4 ways, for example, as 166800789559044 + 256736977644196 = 12915138^2 + 16023014^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19112704047 + ... + 19112726206.

Almost surely, 2^{423537767203240} is an apocalyptic number.

423537767203240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423537767203240 is an abundant number, since it is smaller than the sum of its proper divisors (532862497751840).

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

423537767203240 is a wasteful number, since it uses less digits than its factorization.

423537767203240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38225430541 (or 38225430537 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 55.

The spelling of 423537767203240 in words is "four hundred twenty-three trillion, five hundred thirty-seven billion, seven hundred sixty-seven million, two hundred three thousand, two hundred forty".