7758138053 has 2 divisors, whose sum is σ = 7758138054. Its totient is φ = 7758138052.

The previous prime is 7758138043. The next prime is 7758138067. The reversal of 7758138053 is 3508318577.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7496442724 + 261695329 = 86582^2 + 16177^2 .

It is a cyclic number.

It is not a de Polignac number, because 7758138053 - 2³² = 3463170757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7758137989 and 7758138007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7758138013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3879069026 + 3879069027.

It is an arithmetic number, because the mean of its divisors is an integer number (3879069027).

Almost surely, 2^7758138053 is an apocalyptic number.

It is an amenable number.

7758138053 is a deficient number, since it is larger than the sum of its proper divisors (1).

7758138053 is an equidigital number, since it uses as much as digits as its factorization.

7758138053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 7758138053 is about 88080.2932159061. The cubic root of 7758138053 is about 1979.6382406285.

The spelling of 7758138053 in words is "seven billion, seven hundred fifty-eight million, one hundred thirty-eight thousand, fifty-three".