1351372680 has 128 divisors (see below), whose sum is σ = 5148115200. Its totient is φ = 308883456.

The previous prime is 1351372667. The next prime is 1351372699. The reversal of 1351372680 is 862731531.

1351372680 is a `hidden beast` number, since 13 + 513 + 72 + 68 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81817 + ... + 96936.

It is an arithmetic number, because the mean of its divisors is an integer number (40219650).

Almost surely, 2^1351372680 is an apocalyptic number.

1351372680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351372680 is an abundant number, since it is smaller than the sum of its proper divisors (3796742520).

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

1351372680 is a wasteful number, since it uses less digits than its factorization.

1351372680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178780 (or 178770 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1351372680 is about 36761.0212045313. The cubic root of 1351372680 is about 1105.5839150247.

The spelling of 1351372680 in words is "one billion, three hundred fifty-one million, three hundred seventy-two thousand, six hundred eighty".