1368697500 has 210 divisors, whose sum is σ = 4493524112. Its totient is φ = 364500000.

The previous prime is 1368697487. The next prime is 1368697531. The reversal of 1368697500 is 57968631.

It is a happy number.

1368697500 is a `hidden beast` number, since 136 + 8 + 6 + 9 + 7 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 69 ways as a sum of consecutive naturals, for example, 1822125 + ... + 1822875.

Almost surely, 2^1368697500 is an apocalyptic number.

1368697500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1368697500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2246762056).

1368697500 is an abundant number, since it is smaller than the sum of its proper divisors (3124826612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1368697500 is an frugal number, since it uses more digits than its factorization.

1368697500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 1368697500 is about 36995.9119363207. The cubic root of 1368697500 is about 1110.2884568070.

The spelling of 1368697500 in words is "one billion, three hundred sixty-eight million, six hundred ninety-seven thousand, five hundred".