2915487761 has 2 divisors, whose sum is σ = 2915487762. Its totient is φ = 2915487760.

The previous prime is 2915487749. The next prime is 2915487767. The reversal of 2915487761 is 1677845192.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2138137600 + 777350161 = 46240^2 + 27881^2 .

It is a cyclic number.

It is not a de Polignac number, because 2915487761 - 2¹⁰ = 2915486737 is a prime.

It is not a weakly prime, because it can be changed into another prime (2915487767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1457743880 + 1457743881.

It is an arithmetic number, because the mean of its divisors is an integer number (1457743881).

Almost surely, 2^2915487761 is an apocalyptic number.

It is an amenable number.

2915487761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2915487761 is an equidigital number, since it uses as much as digits as its factorization.

2915487761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 50.

The square root of 2915487761 is about 53995.2568379853. The cubic root of 2915487761 is about 1428.5772866536.

The spelling of 2915487761 in words is "two billion, nine hundred fifteen million, four hundred eighty-seven thousand, seven hundred sixty-one".