7042101990 has 192 divisors, whose sum is σ = 21316635648. Its totient is φ = 1457406720.

The previous prime is 7042101977. The next prime is 7042102013. The reversal of 7042101990 is 991012407.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 9477559 + ... + 9478301.

It is an arithmetic number, because the mean of its divisors is an integer number (111024144).

Almost surely, 2^7042101990 is an apocalyptic number.

7042101990 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 7042101990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10658317824).

7042101990 is an abundant number, since it is smaller than the sum of its proper divisors (14274533658).

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

7042101990 is a wasteful number, since it uses less digits than its factorization.

7042101990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 7042101990 is about 83917.2329739250. The cubic root of 7042101990 is about 1916.7586722648.

The spelling of 7042101990 in words is "seven billion, forty-two million, one hundred one thousand, nine hundred ninety".