99677678357862 has 224 divisors, whose sum is σ = 244951007938560. Its totient is φ = 30156068741760.

The previous prime is 99677678357827. The next prime is 99677678357909. The reversal of 99677678357862 is 26875387677699.

It is a happy number.

99677678357862 is a `hidden beast` number, since 9 + 9 + 67 + 76 + 78 + 357 + 8 + 62 = 666.

It is a super-2 number, since 2×99677678357862² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 52105424218 + ... + 52105426130.

It is an arithmetic number, because the mean of its divisors is an integer number (1093531285440).

Almost surely, 2^{99677678357862} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99677678357862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122475503969280).

99677678357862 is an abundant number, since it is smaller than the sum of its proper divisors (145273329580698).

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

99677678357862 is a wasteful number, since it uses less digits than its factorization.

99677678357862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550 (or 5535 counting only the distinct ones).

The product of its digits is 80655160320, while the sum is 90.

The spelling of 99677678357862 in words is "ninety-nine trillion, six hundred seventy-seven billion, six hundred seventy-eight million, three hundred fifty-seven thousand, eight hundred sixty-two".