1437701664493 has 2 divisors, whose sum is σ = 1437701664494. Its totient is φ = 1437701664492.

The previous prime is 1437701664473. The next prime is 1437701664523. The reversal of 1437701664493 is 3944661077341.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1270225923849 + 167475740644 = 1127043^2 + 409238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1437701664493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1437701664473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 718850832246 + 718850832247.

It is an arithmetic number, because the mean of its divisors is an integer number (718850832247).

Almost surely, 2^{1437701664493} is an apocalyptic number.

It is an amenable number.

1437701664493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1437701664493 is an equidigital number, since it uses as much as digits as its factorization.

1437701664493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9144576, while the sum is 55.

The spelling of 1437701664493 in words is "one trillion, four hundred thirty-seven billion, seven hundred one million, six hundred sixty-four thousand, four hundred ninety-three".