7542661733 has 2 divisors, whose sum is σ = 7542661734. Its totient is φ = 7542661732.

The previous prime is 7542661723. The next prime is 7542661811. The reversal of 7542661733 is 3371662457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4996651969 + 2546009764 = 70687^2 + 50458^2 .

It is a cyclic number.

It is not a de Polignac number, because 7542661733 - 2⁴ = 7542661717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7542661723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3771330866 + 3771330867.

It is an arithmetic number, because the mean of its divisors is an integer number (3771330867).

Almost surely, 2^7542661733 is an apocalyptic number.

It is an amenable number.

7542661733 is a deficient number, since it is larger than the sum of its proper divisors (1).

7542661733 is an equidigital number, since it uses as much as digits as its factorization.

7542661733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 44.

The square root of 7542661733 is about 86848.4987377445. The cubic root of 7542661733 is about 1961.1382508425.

The spelling of 7542661733 in words is "seven billion, five hundred forty-two million, six hundred sixty-one thousand, seven hundred thirty-three".