988319720451 has 16 divisors (see below), whose sum is σ = 1506083904000. Its totient is φ = 564726787968.

The previous prime is 988319720417. The next prime is 988319720459. The reversal of 988319720451 is 154027913889.

It is not a de Polignac number, because 988319720451 - 2²¹ = 988317623299 is a prime.

It is a super-4 number, since 4×988319720451⁴ (a number of 49 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 988319720391 and 988319720400.

It is not an unprimeable number, because it can be changed into a prime (988319720459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690831 + ... + 1566488.

It is an arithmetic number, because the mean of its divisors is an integer number (94130244000).

Almost surely, 2^988319720451 is an apocalyptic number.

988319720451 is a deficient number, since it is larger than the sum of its proper divisors (517764183549).

988319720451 is a wasteful number, since it uses less digits than its factorization.

988319720451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278178.

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 988319720451 in words is "nine hundred eighty-eight billion, three hundred nineteen million, seven hundred twenty thousand, four hundred fifty-one".