1015478798207 has 4 divisors (see below), whose sum is σ = 1050495308520. Its totient is φ = 980462287896.

The previous prime is 1015478798183. The next prime is 1015478798249. The reversal of 1015478798207 is 7028978745101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1015478798207 - 2⁶ = 1015478798143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015478798267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17508255113 + ... + 17508255170.

It is an arithmetic number, because the mean of its divisors is an integer number (262623827130).

Almost surely, 2^{1015478798207} is an apocalyptic number.

1015478798207 is a deficient number, since it is larger than the sum of its proper divisors (35016510313).

1015478798207 is an equidigital number, since it uses as much as digits as its factorization.

1015478798207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35016510312.

The product of its (nonzero) digits is 7902720, while the sum is 59.

The spelling of 1015478798207 in words is "one trillion, fifteen billion, four hundred seventy-eight million, seven hundred ninety-eight thousand, two hundred seven".