787535915801 has 2 divisors, whose sum is σ = 787535915802. Its totient is φ = 787535915800.

The previous prime is 787535915783. The next prime is 787535915821. The reversal of 787535915801 is 108519535787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 528312376201 + 259223539600 = 726851^2 + 509140^2 .

It is a cyclic number.

It is not a de Polignac number, because 787535915801 - 2¹⁰ = 787535914777 is a prime.

It is a super-2 number, since 2×787535915801² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (787535915821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393767957900 + 393767957901.

It is an arithmetic number, because the mean of its divisors is an integer number (393767957901).

Almost surely, 2^787535915801 is an apocalyptic number.

It is an amenable number.

787535915801 is a deficient number, since it is larger than the sum of its proper divisors (1).

787535915801 is an equidigital number, since it uses as much as digits as its factorization.

787535915801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584000, while the sum is 59.

The spelling of 787535915801 in words is "seven hundred eighty-seven billion, five hundred thirty-five million, nine hundred fifteen thousand, eight hundred one".