3540638734651 has 2 divisors, whose sum is σ = 3540638734652. Its totient is φ = 3540638734650.

The previous prime is 3540638734637. The next prime is 3540638734687. The reversal of 3540638734651 is 1564378360453.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3540638734651 - 2²⁵ = 3540605180219 is a prime.

It is a super-2 number, since 2×3540638734651² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3540638734592 and 3540638734601.

It is not a weakly prime, because it can be changed into another prime (3540638732651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1770319367325 + 1770319367326.

It is an arithmetic number, because the mean of its divisors is an integer number (1770319367326).

Almost surely, 2^{3540638734651} is an apocalyptic number.

3540638734651 is a deficient number, since it is larger than the sum of its proper divisors (1).

3540638734651 is an equidigital number, since it uses as much as digits as its factorization.

3540638734651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21772800, while the sum is 55.

The spelling of 3540638734651 in words is "three trillion, five hundred forty billion, six hundred thirty-eight million, seven hundred thirty-four thousand, six hundred fifty-one".