7912820370 has 576 divisors, whose sum is σ = 26619134976. Its totient is φ = 1489259520.

The previous prime is 7912820347. The next prime is 7912820393. The reversal of 7912820370 is 730282197.

It is an interprime number because it is at equal distance from previous prime (7912820347) and next prime (7912820393).

It is a super-2 number, since 2×7912820370² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 213859992 + ... + 213860028.

It is an arithmetic number, because the mean of its divisors is an integer number (46213776).

Almost surely, 2^7912820370 is an apocalyptic number.

7912820370 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7912820370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13309567488).

7912820370 is an abundant number, since it is smaller than the sum of its proper divisors (18706314606).

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

7912820370 is a wasteful number, since it uses less digits than its factorization.

7912820370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 7912820370 is about 88954.0351529935. The cubic root of 7912820370 is about 1992.7084800067.

The spelling of 7912820370 in words is "seven billion, nine hundred twelve million, eight hundred twenty thousand, three hundred seventy".