697506411420 has 288 divisors, whose sum is σ = 2688026664960. Its totient is φ = 142418787840.

The previous prime is 697506411403. The next prime is 697506411457. The reversal of 697506411420 is 24114605796.

697506411420 is a `hidden beast` number, since 6 + 9 + 7 + 506 + 4 + 114 + 20 = 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 95 ways as a sum of consecutive naturals, for example, 179040 + ... + 1194599.

It is an arithmetic number, because the mean of its divisors is an integer number (9333425920).

Almost surely, 2^697506411420 is an apocalyptic number.

697506411420 is a gapful number since it is divisible by the number (60) 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 697506411420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1344013332480).

697506411420 is an abundant number, since it is smaller than the sum of its proper divisors (1990520253540).

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

697506411420 is a wasteful number, since it uses less digits than its factorization.

697506411420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373705 (or 1373700 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 697506411420 in words is "six hundred ninety-seven billion, five hundred six million, four hundred eleven thousand, four hundred twenty".