1098980460997 has 2 divisors, whose sum is σ = 1098980460998. Its totient is φ = 1098980460996.

The previous prime is 1098980460937. The next prime is 1098980461037. The reversal of 1098980460997 is 7990640898901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 993797647236 + 105182813761 = 996894^2 + 324319^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098980460997 - 2¹⁵ = 1098980428229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1098980460917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549490230498 + 549490230499.

It is an arithmetic number, because the mean of its divisors is an integer number (549490230499).

Almost surely, 2^{1098980460997} is an apocalyptic number.

It is an amenable number.

1098980460997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098980460997 is an equidigital number, since it uses as much as digits as its factorization.

1098980460997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70543872, while the sum is 70.

The spelling of 1098980460997 in words is "one trillion, ninety-eight billion, nine hundred eighty million, four hundred sixty thousand, nine hundred ninety-seven".